| 1 | //===-- LLParser.cpp - Parser Class ---------------------------------------===// |
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | // |
| 9 | // This file defines the parser class for .ll files. |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===// |
| 12 | |
| 13 | #include "LLParser.h" |
| 14 | #include "LLToken.h" |
| 15 | #include "llvm/ADT/APSInt.h" |
| 16 | #include "llvm/ADT/DenseMap.h" |
| 17 | #include "llvm/ADT/None.h" |
| 18 | #include "llvm/ADT/STLExtras.h" |
| 19 | #include "llvm/ADT/SmallPtrSet.h" |
| 20 | #include "llvm/AsmParser/SlotMapping.h" |
| 21 | #include "llvm/BinaryFormat/Dwarf.h" |
| 22 | #include "llvm/IR/Argument.h" |
| 23 | #include "llvm/IR/AutoUpgrade.h" |
| 24 | #include "llvm/IR/BasicBlock.h" |
| 25 | #include "llvm/IR/CallingConv.h" |
| 26 | #include "llvm/IR/Comdat.h" |
| 27 | #include "llvm/IR/ConstantRange.h" |
| 28 | #include "llvm/IR/Constants.h" |
| 29 | #include "llvm/IR/DebugInfoMetadata.h" |
| 30 | #include "llvm/IR/DerivedTypes.h" |
| 31 | #include "llvm/IR/Function.h" |
| 32 | #include "llvm/IR/GlobalIFunc.h" |
| 33 | #include "llvm/IR/GlobalObject.h" |
| 34 | #include "llvm/IR/InlineAsm.h" |
| 35 | #include "llvm/IR/Intrinsics.h" |
| 36 | #include "llvm/IR/LLVMContext.h" |
| 37 | #include "llvm/IR/Metadata.h" |
| 38 | #include "llvm/IR/Module.h" |
| 39 | #include "llvm/IR/Value.h" |
| 40 | #include "llvm/IR/ValueSymbolTable.h" |
| 41 | #include "llvm/Support/Casting.h" |
| 42 | #include "llvm/Support/ErrorHandling.h" |
| 43 | #include "llvm/Support/MathExtras.h" |
| 44 | #include "llvm/Support/SaveAndRestore.h" |
| 45 | #include "llvm/Support/raw_ostream.h" |
| 46 | #include <algorithm> |
| 47 | #include <cassert> |
| 48 | #include <cstring> |
| 49 | #include <iterator> |
| 50 | #include <vector> |
| 51 | |
| 52 | using namespace llvm; |
| 53 | |
| 54 | static std::string getTypeString(Type *T) { |
| 55 | std::string Result; |
| 56 | raw_string_ostream Tmp(Result); |
| 57 | Tmp << *T; |
| 58 | return Tmp.str(); |
| 59 | } |
| 60 | |
| 61 | /// Run: module ::= toplevelentity* |
| 62 | bool LLParser::Run(bool UpgradeDebugInfo, |
| 63 | DataLayoutCallbackTy DataLayoutCallback) { |
| 64 | // Prime the lexer. |
| 65 | Lex.Lex(); |
| 66 | |
| 67 | if (Context.shouldDiscardValueNames()) |
| 68 | return error( |
| 69 | Lex.getLoc(), |
| 70 | "Can't read textual IR with a Context that discards named Values" ); |
| 71 | |
| 72 | if (M) { |
| 73 | if (parseTargetDefinitions()) |
| 74 | return true; |
| 75 | |
| 76 | if (auto LayoutOverride = DataLayoutCallback(M->getTargetTriple())) |
| 77 | M->setDataLayout(*LayoutOverride); |
| 78 | } |
| 79 | |
| 80 | return parseTopLevelEntities() || validateEndOfModule(UpgradeDebugInfo) || |
| 81 | validateEndOfIndex(); |
| 82 | } |
| 83 | |
| 84 | bool LLParser::parseStandaloneConstantValue(Constant *&C, |
| 85 | const SlotMapping *Slots) { |
| 86 | restoreParsingState(Slots); |
| 87 | Lex.Lex(); |
| 88 | |
| 89 | Type *Ty = nullptr; |
| 90 | if (parseType(Ty) || parseConstantValue(Ty, C)) |
| 91 | return true; |
| 92 | if (Lex.getKind() != lltok::Eof) |
| 93 | return error(Lex.getLoc(), "expected end of string" ); |
| 94 | return false; |
| 95 | } |
| 96 | |
| 97 | bool LLParser::parseTypeAtBeginning(Type *&Ty, unsigned &Read, |
| 98 | const SlotMapping *Slots) { |
| 99 | restoreParsingState(Slots); |
| 100 | Lex.Lex(); |
| 101 | |
| 102 | Read = 0; |
| 103 | SMLoc Start = Lex.getLoc(); |
| 104 | Ty = nullptr; |
| 105 | if (parseType(Ty)) |
| 106 | return true; |
| 107 | SMLoc End = Lex.getLoc(); |
| 108 | Read = End.getPointer() - Start.getPointer(); |
| 109 | |
| 110 | return false; |
| 111 | } |
| 112 | |
| 113 | void LLParser::restoreParsingState(const SlotMapping *Slots) { |
| 114 | if (!Slots) |
| 115 | return; |
| 116 | NumberedVals = Slots->GlobalValues; |
| 117 | NumberedMetadata = Slots->MetadataNodes; |
| 118 | for (const auto &I : Slots->NamedTypes) |
| 119 | NamedTypes.insert( |
| 120 | std::make_pair(I.getKey(), std::make_pair(I.second, LocTy()))); |
| 121 | for (const auto &I : Slots->Types) |
| 122 | NumberedTypes.insert( |
| 123 | std::make_pair(I.first, std::make_pair(I.second, LocTy()))); |
| 124 | } |
| 125 | |
| 126 | /// validateEndOfModule - Do final validity and sanity checks at the end of the |
| 127 | /// module. |
| 128 | bool LLParser::validateEndOfModule(bool UpgradeDebugInfo) { |
| 129 | if (!M) |
| 130 | return false; |
| 131 | // Handle any function attribute group forward references. |
| 132 | for (const auto &RAG : ForwardRefAttrGroups) { |
| 133 | Value *V = RAG.first; |
| 134 | const std::vector<unsigned> &Attrs = RAG.second; |
| 135 | AttrBuilder B; |
| 136 | |
| 137 | for (const auto &Attr : Attrs) |
| 138 | B.merge(NumberedAttrBuilders[Attr]); |
| 139 | |
| 140 | if (Function *Fn = dyn_cast<Function>(V)) { |
| 141 | AttributeList AS = Fn->getAttributes(); |
| 142 | AttrBuilder FnAttrs(AS.getFnAttributes()); |
| 143 | AS = AS.removeAttributes(Context, AttributeList::FunctionIndex); |
| 144 | |
| 145 | FnAttrs.merge(B); |
| 146 | |
| 147 | // If the alignment was parsed as an attribute, move to the alignment |
| 148 | // field. |
| 149 | if (FnAttrs.hasAlignmentAttr()) { |
| 150 | Fn->setAlignment(FnAttrs.getAlignment()); |
| 151 | FnAttrs.removeAttribute(Attribute::Alignment); |
| 152 | } |
| 153 | |
| 154 | AS = AS.addAttributes(Context, AttributeList::FunctionIndex, |
| 155 | AttributeSet::get(Context, FnAttrs)); |
| 156 | Fn->setAttributes(AS); |
| 157 | } else if (CallInst *CI = dyn_cast<CallInst>(V)) { |
| 158 | AttributeList AS = CI->getAttributes(); |
| 159 | AttrBuilder FnAttrs(AS.getFnAttributes()); |
| 160 | AS = AS.removeAttributes(Context, AttributeList::FunctionIndex); |
| 161 | FnAttrs.merge(B); |
| 162 | AS = AS.addAttributes(Context, AttributeList::FunctionIndex, |
| 163 | AttributeSet::get(Context, FnAttrs)); |
| 164 | CI->setAttributes(AS); |
| 165 | } else if (InvokeInst *II = dyn_cast<InvokeInst>(V)) { |
| 166 | AttributeList AS = II->getAttributes(); |
| 167 | AttrBuilder FnAttrs(AS.getFnAttributes()); |
| 168 | AS = AS.removeAttributes(Context, AttributeList::FunctionIndex); |
| 169 | FnAttrs.merge(B); |
| 170 | AS = AS.addAttributes(Context, AttributeList::FunctionIndex, |
| 171 | AttributeSet::get(Context, FnAttrs)); |
| 172 | II->setAttributes(AS); |
| 173 | } else if (CallBrInst *CBI = dyn_cast<CallBrInst>(V)) { |
| 174 | AttributeList AS = CBI->getAttributes(); |
| 175 | AttrBuilder FnAttrs(AS.getFnAttributes()); |
| 176 | AS = AS.removeAttributes(Context, AttributeList::FunctionIndex); |
| 177 | FnAttrs.merge(B); |
| 178 | AS = AS.addAttributes(Context, AttributeList::FunctionIndex, |
| 179 | AttributeSet::get(Context, FnAttrs)); |
| 180 | CBI->setAttributes(AS); |
| 181 | } else if (auto *GV = dyn_cast<GlobalVariable>(V)) { |
| 182 | AttrBuilder Attrs(GV->getAttributes()); |
| 183 | Attrs.merge(B); |
| 184 | GV->setAttributes(AttributeSet::get(Context,Attrs)); |
| 185 | } else { |
| 186 | llvm_unreachable("invalid object with forward attribute group reference" ); |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | // If there are entries in ForwardRefBlockAddresses at this point, the |
| 191 | // function was never defined. |
| 192 | if (!ForwardRefBlockAddresses.empty()) |
| 193 | return error(ForwardRefBlockAddresses.begin()->first.Loc, |
| 194 | "expected function name in blockaddress" ); |
| 195 | |
| 196 | for (const auto &NT : NumberedTypes) |
| 197 | if (NT.second.second.isValid()) |
| 198 | return error(NT.second.second, |
| 199 | "use of undefined type '%" + Twine(NT.first) + "'" ); |
| 200 | |
| 201 | for (StringMap<std::pair<Type*, LocTy> >::iterator I = |
| 202 | NamedTypes.begin(), E = NamedTypes.end(); I != E; ++I) |
| 203 | if (I->second.second.isValid()) |
| 204 | return error(I->second.second, |
| 205 | "use of undefined type named '" + I->getKey() + "'" ); |
| 206 | |
| 207 | if (!ForwardRefComdats.empty()) |
| 208 | return error(ForwardRefComdats.begin()->second, |
| 209 | "use of undefined comdat '$" + |
| 210 | ForwardRefComdats.begin()->first + "'" ); |
| 211 | |
| 212 | if (!ForwardRefVals.empty()) |
| 213 | return error(ForwardRefVals.begin()->second.second, |
| 214 | "use of undefined value '@" + ForwardRefVals.begin()->first + |
| 215 | "'" ); |
| 216 | |
| 217 | if (!ForwardRefValIDs.empty()) |
| 218 | return error(ForwardRefValIDs.begin()->second.second, |
| 219 | "use of undefined value '@" + |
| 220 | Twine(ForwardRefValIDs.begin()->first) + "'" ); |
| 221 | |
| 222 | if (!ForwardRefMDNodes.empty()) |
| 223 | return error(ForwardRefMDNodes.begin()->second.second, |
| 224 | "use of undefined metadata '!" + |
| 225 | Twine(ForwardRefMDNodes.begin()->first) + "'" ); |
| 226 | |
| 227 | // Resolve metadata cycles. |
| 228 | for (auto &N : NumberedMetadata) { |
| 229 | if (N.second && !N.second->isResolved()) |
| 230 | N.second->resolveCycles(); |
| 231 | } |
| 232 | |
| 233 | for (auto *Inst : InstsWithTBAATag) { |
| 234 | MDNode *MD = Inst->getMetadata(LLVMContext::MD_tbaa); |
| 235 | assert(MD && "UpgradeInstWithTBAATag should have a TBAA tag" ); |
| 236 | auto *UpgradedMD = UpgradeTBAANode(*MD); |
| 237 | if (MD != UpgradedMD) |
| 238 | Inst->setMetadata(LLVMContext::MD_tbaa, UpgradedMD); |
| 239 | } |
| 240 | |
| 241 | // Look for intrinsic functions and CallInst that need to be upgraded |
| 242 | for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; ) |
| 243 | UpgradeCallsToIntrinsic(&*FI++); // must be post-increment, as we remove |
| 244 | |
| 245 | // Some types could be renamed during loading if several modules are |
| 246 | // loaded in the same LLVMContext (LTO scenario). In this case we should |
| 247 | // remangle intrinsics names as well. |
| 248 | for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; ) { |
| 249 | Function *F = &*FI++; |
| 250 | if (auto Remangled = Intrinsic::remangleIntrinsicFunction(F)) { |
| 251 | F->replaceAllUsesWith(Remangled.getValue()); |
| 252 | F->eraseFromParent(); |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | if (UpgradeDebugInfo) |
| 257 | llvm::UpgradeDebugInfo(*M); |
| 258 | |
| 259 | UpgradeModuleFlags(*M); |
| 260 | UpgradeSectionAttributes(*M); |
| 261 | |
| 262 | if (!Slots) |
| 263 | return false; |
| 264 | // Initialize the slot mapping. |
| 265 | // Because by this point we've parsed and validated everything, we can "steal" |
| 266 | // the mapping from LLParser as it doesn't need it anymore. |
| 267 | Slots->GlobalValues = std::move(NumberedVals); |
| 268 | Slots->MetadataNodes = std::move(NumberedMetadata); |
| 269 | for (const auto &I : NamedTypes) |
| 270 | Slots->NamedTypes.insert(std::make_pair(I.getKey(), I.second.first)); |
| 271 | for (const auto &I : NumberedTypes) |
| 272 | Slots->Types.insert(std::make_pair(I.first, I.second.first)); |
| 273 | |
| 274 | return false; |
| 275 | } |
| 276 | |
| 277 | /// Do final validity and sanity checks at the end of the index. |
| 278 | bool LLParser::validateEndOfIndex() { |
| 279 | if (!Index) |
| 280 | return false; |
| 281 | |
| 282 | if (!ForwardRefValueInfos.empty()) |
| 283 | return error(ForwardRefValueInfos.begin()->second.front().second, |
| 284 | "use of undefined summary '^" + |
| 285 | Twine(ForwardRefValueInfos.begin()->first) + "'" ); |
| 286 | |
| 287 | if (!ForwardRefAliasees.empty()) |
| 288 | return error(ForwardRefAliasees.begin()->second.front().second, |
| 289 | "use of undefined summary '^" + |
| 290 | Twine(ForwardRefAliasees.begin()->first) + "'" ); |
| 291 | |
| 292 | if (!ForwardRefTypeIds.empty()) |
| 293 | return error(ForwardRefTypeIds.begin()->second.front().second, |
| 294 | "use of undefined type id summary '^" + |
| 295 | Twine(ForwardRefTypeIds.begin()->first) + "'" ); |
| 296 | |
| 297 | return false; |
| 298 | } |
| 299 | |
| 300 | //===----------------------------------------------------------------------===// |
| 301 | // Top-Level Entities |
| 302 | //===----------------------------------------------------------------------===// |
| 303 | |
| 304 | bool LLParser::parseTargetDefinitions() { |
| 305 | while (true) { |
| 306 | switch (Lex.getKind()) { |
| 307 | case lltok::kw_target: |
| 308 | if (parseTargetDefinition()) |
| 309 | return true; |
| 310 | break; |
| 311 | case lltok::kw_source_filename: |
| 312 | if (parseSourceFileName()) |
| 313 | return true; |
| 314 | break; |
| 315 | default: |
| 316 | return false; |
| 317 | } |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | bool LLParser::parseTopLevelEntities() { |
| 322 | // If there is no Module, then parse just the summary index entries. |
| 323 | if (!M) { |
| 324 | while (true) { |
| 325 | switch (Lex.getKind()) { |
| 326 | case lltok::Eof: |
| 327 | return false; |
| 328 | case lltok::SummaryID: |
| 329 | if (parseSummaryEntry()) |
| 330 | return true; |
| 331 | break; |
| 332 | case lltok::kw_source_filename: |
| 333 | if (parseSourceFileName()) |
| 334 | return true; |
| 335 | break; |
| 336 | default: |
| 337 | // Skip everything else |
| 338 | Lex.Lex(); |
| 339 | } |
| 340 | } |
| 341 | } |
| 342 | while (true) { |
| 343 | switch (Lex.getKind()) { |
| 344 | default: |
| 345 | return tokError("expected top-level entity" ); |
| 346 | case lltok::Eof: return false; |
| 347 | case lltok::kw_declare: |
| 348 | if (parseDeclare()) |
| 349 | return true; |
| 350 | break; |
| 351 | case lltok::kw_define: |
| 352 | if (parseDefine()) |
| 353 | return true; |
| 354 | break; |
| 355 | case lltok::kw_module: |
| 356 | if (parseModuleAsm()) |
| 357 | return true; |
| 358 | break; |
| 359 | case lltok::kw_deplibs: |
| 360 | if (parseDepLibs()) |
| 361 | return true; |
| 362 | break; |
| 363 | case lltok::LocalVarID: |
| 364 | if (parseUnnamedType()) |
| 365 | return true; |
| 366 | break; |
| 367 | case lltok::LocalVar: |
| 368 | if (parseNamedType()) |
| 369 | return true; |
| 370 | break; |
| 371 | case lltok::GlobalID: |
| 372 | if (parseUnnamedGlobal()) |
| 373 | return true; |
| 374 | break; |
| 375 | case lltok::GlobalVar: |
| 376 | if (parseNamedGlobal()) |
| 377 | return true; |
| 378 | break; |
| 379 | case lltok::ComdatVar: if (parseComdat()) return true; break; |
| 380 | case lltok::exclaim: |
| 381 | if (parseStandaloneMetadata()) |
| 382 | return true; |
| 383 | break; |
| 384 | case lltok::SummaryID: |
| 385 | if (parseSummaryEntry()) |
| 386 | return true; |
| 387 | break; |
| 388 | case lltok::MetadataVar: |
| 389 | if (parseNamedMetadata()) |
| 390 | return true; |
| 391 | break; |
| 392 | case lltok::kw_attributes: |
| 393 | if (parseUnnamedAttrGrp()) |
| 394 | return true; |
| 395 | break; |
| 396 | case lltok::kw_uselistorder: |
| 397 | if (parseUseListOrder()) |
| 398 | return true; |
| 399 | break; |
| 400 | case lltok::kw_uselistorder_bb: |
| 401 | if (parseUseListOrderBB()) |
| 402 | return true; |
| 403 | break; |
| 404 | } |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | /// toplevelentity |
| 409 | /// ::= 'module' 'asm' STRINGCONSTANT |
| 410 | bool LLParser::parseModuleAsm() { |
| 411 | assert(Lex.getKind() == lltok::kw_module); |
| 412 | Lex.Lex(); |
| 413 | |
| 414 | std::string AsmStr; |
| 415 | if (parseToken(lltok::kw_asm, "expected 'module asm'" ) || |
| 416 | parseStringConstant(AsmStr)) |
| 417 | return true; |
| 418 | |
| 419 | M->appendModuleInlineAsm(AsmStr); |
| 420 | return false; |
| 421 | } |
| 422 | |
| 423 | /// toplevelentity |
| 424 | /// ::= 'target' 'triple' '=' STRINGCONSTANT |
| 425 | /// ::= 'target' 'datalayout' '=' STRINGCONSTANT |
| 426 | bool LLParser::parseTargetDefinition() { |
| 427 | assert(Lex.getKind() == lltok::kw_target); |
| 428 | std::string Str; |
| 429 | switch (Lex.Lex()) { |
| 430 | default: |
| 431 | return tokError("unknown target property" ); |
| 432 | case lltok::kw_triple: |
| 433 | Lex.Lex(); |
| 434 | if (parseToken(lltok::equal, "expected '=' after target triple" ) || |
| 435 | parseStringConstant(Str)) |
| 436 | return true; |
| 437 | M->setTargetTriple(Str); |
| 438 | return false; |
| 439 | case lltok::kw_datalayout: |
| 440 | Lex.Lex(); |
| 441 | if (parseToken(lltok::equal, "expected '=' after target datalayout" ) || |
| 442 | parseStringConstant(Str)) |
| 443 | return true; |
| 444 | M->setDataLayout(Str); |
| 445 | return false; |
| 446 | } |
| 447 | } |
| 448 | |
| 449 | /// toplevelentity |
| 450 | /// ::= 'source_filename' '=' STRINGCONSTANT |
| 451 | bool LLParser::parseSourceFileName() { |
| 452 | assert(Lex.getKind() == lltok::kw_source_filename); |
| 453 | Lex.Lex(); |
| 454 | if (parseToken(lltok::equal, "expected '=' after source_filename" ) || |
| 455 | parseStringConstant(SourceFileName)) |
| 456 | return true; |
| 457 | if (M) |
| 458 | M->setSourceFileName(SourceFileName); |
| 459 | return false; |
| 460 | } |
| 461 | |
| 462 | /// toplevelentity |
| 463 | /// ::= 'deplibs' '=' '[' ']' |
| 464 | /// ::= 'deplibs' '=' '[' STRINGCONSTANT (',' STRINGCONSTANT)* ']' |
| 465 | /// FIXME: Remove in 4.0. Currently parse, but ignore. |
| 466 | bool LLParser::parseDepLibs() { |
| 467 | assert(Lex.getKind() == lltok::kw_deplibs); |
| 468 | Lex.Lex(); |
| 469 | if (parseToken(lltok::equal, "expected '=' after deplibs" ) || |
| 470 | parseToken(lltok::lsquare, "expected '=' after deplibs" )) |
| 471 | return true; |
| 472 | |
| 473 | if (EatIfPresent(lltok::rsquare)) |
| 474 | return false; |
| 475 | |
| 476 | do { |
| 477 | std::string Str; |
| 478 | if (parseStringConstant(Str)) |
| 479 | return true; |
| 480 | } while (EatIfPresent(lltok::comma)); |
| 481 | |
| 482 | return parseToken(lltok::rsquare, "expected ']' at end of list" ); |
| 483 | } |
| 484 | |
| 485 | /// parseUnnamedType: |
| 486 | /// ::= LocalVarID '=' 'type' type |
| 487 | bool LLParser::parseUnnamedType() { |
| 488 | LocTy TypeLoc = Lex.getLoc(); |
| 489 | unsigned TypeID = Lex.getUIntVal(); |
| 490 | Lex.Lex(); // eat LocalVarID; |
| 491 | |
| 492 | if (parseToken(lltok::equal, "expected '=' after name" ) || |
| 493 | parseToken(lltok::kw_type, "expected 'type' after '='" )) |
| 494 | return true; |
| 495 | |
| 496 | Type *Result = nullptr; |
| 497 | if (parseStructDefinition(TypeLoc, "" , NumberedTypes[TypeID], Result)) |
| 498 | return true; |
| 499 | |
| 500 | if (!isa<StructType>(Result)) { |
| 501 | std::pair<Type*, LocTy> &Entry = NumberedTypes[TypeID]; |
| 502 | if (Entry.first) |
| 503 | return error(TypeLoc, "non-struct types may not be recursive" ); |
| 504 | Entry.first = Result; |
| 505 | Entry.second = SMLoc(); |
| 506 | } |
| 507 | |
| 508 | return false; |
| 509 | } |
| 510 | |
| 511 | /// toplevelentity |
| 512 | /// ::= LocalVar '=' 'type' type |
| 513 | bool LLParser::parseNamedType() { |
| 514 | std::string Name = Lex.getStrVal(); |
| 515 | LocTy NameLoc = Lex.getLoc(); |
| 516 | Lex.Lex(); // eat LocalVar. |
| 517 | |
| 518 | if (parseToken(lltok::equal, "expected '=' after name" ) || |
| 519 | parseToken(lltok::kw_type, "expected 'type' after name" )) |
| 520 | return true; |
| 521 | |
| 522 | Type *Result = nullptr; |
| 523 | if (parseStructDefinition(NameLoc, Name, NamedTypes[Name], Result)) |
| 524 | return true; |
| 525 | |
| 526 | if (!isa<StructType>(Result)) { |
| 527 | std::pair<Type*, LocTy> &Entry = NamedTypes[Name]; |
| 528 | if (Entry.first) |
| 529 | return error(NameLoc, "non-struct types may not be recursive" ); |
| 530 | Entry.first = Result; |
| 531 | Entry.second = SMLoc(); |
| 532 | } |
| 533 | |
| 534 | return false; |
| 535 | } |
| 536 | |
| 537 | /// toplevelentity |
| 538 | /// ::= 'declare' FunctionHeader |
| 539 | bool LLParser::parseDeclare() { |
| 540 | assert(Lex.getKind() == lltok::kw_declare); |
| 541 | Lex.Lex(); |
| 542 | |
| 543 | std::vector<std::pair<unsigned, MDNode *>> MDs; |
| 544 | while (Lex.getKind() == lltok::MetadataVar) { |
| 545 | unsigned MDK; |
| 546 | MDNode *N; |
| 547 | if (parseMetadataAttachment(MDK, N)) |
| 548 | return true; |
| 549 | MDs.push_back({MDK, N}); |
| 550 | } |
| 551 | |
| 552 | Function *F; |
| 553 | if (parseFunctionHeader(F, false)) |
| 554 | return true; |
| 555 | for (auto &MD : MDs) |
| 556 | F->addMetadata(MD.first, *MD.second); |
| 557 | return false; |
| 558 | } |
| 559 | |
| 560 | /// toplevelentity |
| 561 | /// ::= 'define' FunctionHeader (!dbg !56)* '{' ... |
| 562 | bool LLParser::parseDefine() { |
| 563 | assert(Lex.getKind() == lltok::kw_define); |
| 564 | Lex.Lex(); |
| 565 | |
| 566 | Function *F; |
| 567 | return parseFunctionHeader(F, true) || parseOptionalFunctionMetadata(*F) || |
| 568 | parseFunctionBody(*F); |
| 569 | } |
| 570 | |
| 571 | /// parseGlobalType |
| 572 | /// ::= 'constant' |
| 573 | /// ::= 'global' |
| 574 | bool LLParser::parseGlobalType(bool &IsConstant) { |
| 575 | if (Lex.getKind() == lltok::kw_constant) |
| 576 | IsConstant = true; |
| 577 | else if (Lex.getKind() == lltok::kw_global) |
| 578 | IsConstant = false; |
| 579 | else { |
| 580 | IsConstant = false; |
| 581 | return tokError("expected 'global' or 'constant'" ); |
| 582 | } |
| 583 | Lex.Lex(); |
| 584 | return false; |
| 585 | } |
| 586 | |
| 587 | bool LLParser::parseOptionalUnnamedAddr( |
| 588 | GlobalVariable::UnnamedAddr &UnnamedAddr) { |
| 589 | if (EatIfPresent(lltok::kw_unnamed_addr)) |
| 590 | UnnamedAddr = GlobalValue::UnnamedAddr::Global; |
| 591 | else if (EatIfPresent(lltok::kw_local_unnamed_addr)) |
| 592 | UnnamedAddr = GlobalValue::UnnamedAddr::Local; |
| 593 | else |
| 594 | UnnamedAddr = GlobalValue::UnnamedAddr::None; |
| 595 | return false; |
| 596 | } |
| 597 | |
| 598 | /// parseUnnamedGlobal: |
| 599 | /// OptionalVisibility (ALIAS | IFUNC) ... |
| 600 | /// OptionalLinkage OptionalPreemptionSpecifier OptionalVisibility |
| 601 | /// OptionalDLLStorageClass |
| 602 | /// ... -> global variable |
| 603 | /// GlobalID '=' OptionalVisibility (ALIAS | IFUNC) ... |
| 604 | /// GlobalID '=' OptionalLinkage OptionalPreemptionSpecifier |
| 605 | /// OptionalVisibility |
| 606 | /// OptionalDLLStorageClass |
| 607 | /// ... -> global variable |
| 608 | bool LLParser::parseUnnamedGlobal() { |
| 609 | unsigned VarID = NumberedVals.size(); |
| 610 | std::string Name; |
| 611 | LocTy NameLoc = Lex.getLoc(); |
| 612 | |
| 613 | // Handle the GlobalID form. |
| 614 | if (Lex.getKind() == lltok::GlobalID) { |
| 615 | if (Lex.getUIntVal() != VarID) |
| 616 | return error(Lex.getLoc(), |
| 617 | "variable expected to be numbered '%" + Twine(VarID) + "'" ); |
| 618 | Lex.Lex(); // eat GlobalID; |
| 619 | |
| 620 | if (parseToken(lltok::equal, "expected '=' after name" )) |
| 621 | return true; |
| 622 | } |
| 623 | |
| 624 | bool HasLinkage; |
| 625 | unsigned Linkage, Visibility, DLLStorageClass; |
| 626 | bool DSOLocal; |
| 627 | GlobalVariable::ThreadLocalMode TLM; |
| 628 | GlobalVariable::UnnamedAddr UnnamedAddr; |
| 629 | if (parseOptionalLinkage(Linkage, HasLinkage, Visibility, DLLStorageClass, |
| 630 | DSOLocal) || |
| 631 | parseOptionalThreadLocal(TLM) || parseOptionalUnnamedAddr(UnnamedAddr)) |
| 632 | return true; |
| 633 | |
| 634 | if (Lex.getKind() != lltok::kw_alias && Lex.getKind() != lltok::kw_ifunc) |
| 635 | return parseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility, |
| 636 | DLLStorageClass, DSOLocal, TLM, UnnamedAddr); |
| 637 | |
| 638 | return parseIndirectSymbol(Name, NameLoc, Linkage, Visibility, |
| 639 | DLLStorageClass, DSOLocal, TLM, UnnamedAddr); |
| 640 | } |
| 641 | |
| 642 | /// parseNamedGlobal: |
| 643 | /// GlobalVar '=' OptionalVisibility (ALIAS | IFUNC) ... |
| 644 | /// GlobalVar '=' OptionalLinkage OptionalPreemptionSpecifier |
| 645 | /// OptionalVisibility OptionalDLLStorageClass |
| 646 | /// ... -> global variable |
| 647 | bool LLParser::parseNamedGlobal() { |
| 648 | assert(Lex.getKind() == lltok::GlobalVar); |
| 649 | LocTy NameLoc = Lex.getLoc(); |
| 650 | std::string Name = Lex.getStrVal(); |
| 651 | Lex.Lex(); |
| 652 | |
| 653 | bool HasLinkage; |
| 654 | unsigned Linkage, Visibility, DLLStorageClass; |
| 655 | bool DSOLocal; |
| 656 | GlobalVariable::ThreadLocalMode TLM; |
| 657 | GlobalVariable::UnnamedAddr UnnamedAddr; |
| 658 | if (parseToken(lltok::equal, "expected '=' in global variable" ) || |
| 659 | parseOptionalLinkage(Linkage, HasLinkage, Visibility, DLLStorageClass, |
| 660 | DSOLocal) || |
| 661 | parseOptionalThreadLocal(TLM) || parseOptionalUnnamedAddr(UnnamedAddr)) |
| 662 | return true; |
| 663 | |
| 664 | if (Lex.getKind() != lltok::kw_alias && Lex.getKind() != lltok::kw_ifunc) |
| 665 | return parseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility, |
| 666 | DLLStorageClass, DSOLocal, TLM, UnnamedAddr); |
| 667 | |
| 668 | return parseIndirectSymbol(Name, NameLoc, Linkage, Visibility, |
| 669 | DLLStorageClass, DSOLocal, TLM, UnnamedAddr); |
| 670 | } |
| 671 | |
| 672 | bool LLParser::parseComdat() { |
| 673 | assert(Lex.getKind() == lltok::ComdatVar); |
| 674 | std::string Name = Lex.getStrVal(); |
| 675 | LocTy NameLoc = Lex.getLoc(); |
| 676 | Lex.Lex(); |
| 677 | |
| 678 | if (parseToken(lltok::equal, "expected '=' here" )) |
| 679 | return true; |
| 680 | |
| 681 | if (parseToken(lltok::kw_comdat, "expected comdat keyword" )) |
| 682 | return tokError("expected comdat type" ); |
| 683 | |
| 684 | Comdat::SelectionKind SK; |
| 685 | switch (Lex.getKind()) { |
| 686 | default: |
| 687 | return tokError("unknown selection kind" ); |
| 688 | case lltok::kw_any: |
| 689 | SK = Comdat::Any; |
| 690 | break; |
| 691 | case lltok::kw_exactmatch: |
| 692 | SK = Comdat::ExactMatch; |
| 693 | break; |
| 694 | case lltok::kw_largest: |
| 695 | SK = Comdat::Largest; |
| 696 | break; |
| 697 | case lltok::kw_noduplicates: |
| 698 | SK = Comdat::NoDuplicates; |
| 699 | break; |
| 700 | case lltok::kw_samesize: |
| 701 | SK = Comdat::SameSize; |
| 702 | break; |
| 703 | } |
| 704 | Lex.Lex(); |
| 705 | |
| 706 | // See if the comdat was forward referenced, if so, use the comdat. |
| 707 | Module::ComdatSymTabType &ComdatSymTab = M->getComdatSymbolTable(); |
| 708 | Module::ComdatSymTabType::iterator I = ComdatSymTab.find(Name); |
| 709 | if (I != ComdatSymTab.end() && !ForwardRefComdats.erase(Name)) |
| 710 | return error(NameLoc, "redefinition of comdat '$" + Name + "'" ); |
| 711 | |
| 712 | Comdat *C; |
| 713 | if (I != ComdatSymTab.end()) |
| 714 | C = &I->second; |
| 715 | else |
| 716 | C = M->getOrInsertComdat(Name); |
| 717 | C->setSelectionKind(SK); |
| 718 | |
| 719 | return false; |
| 720 | } |
| 721 | |
| 722 | // MDString: |
| 723 | // ::= '!' STRINGCONSTANT |
| 724 | bool LLParser::parseMDString(MDString *&Result) { |
| 725 | std::string Str; |
| 726 | if (parseStringConstant(Str)) |
| 727 | return true; |
| 728 | Result = MDString::get(Context, Str); |
| 729 | return false; |
| 730 | } |
| 731 | |
| 732 | // MDNode: |
| 733 | // ::= '!' MDNodeNumber |
| 734 | bool LLParser::parseMDNodeID(MDNode *&Result) { |
| 735 | // !{ ..., !42, ... } |
| 736 | LocTy IDLoc = Lex.getLoc(); |
| 737 | unsigned MID = 0; |
| 738 | if (parseUInt32(MID)) |
| 739 | return true; |
| 740 | |
| 741 | // If not a forward reference, just return it now. |
| 742 | if (NumberedMetadata.count(MID)) { |
| 743 | Result = NumberedMetadata[MID]; |
| 744 | return false; |
| 745 | } |
| 746 | |
| 747 | // Otherwise, create MDNode forward reference. |
| 748 | auto &FwdRef = ForwardRefMDNodes[MID]; |
| 749 | FwdRef = std::make_pair(MDTuple::getTemporary(Context, None), IDLoc); |
| 750 | |
| 751 | Result = FwdRef.first.get(); |
| 752 | NumberedMetadata[MID].reset(Result); |
| 753 | return false; |
| 754 | } |
| 755 | |
| 756 | /// parseNamedMetadata: |
| 757 | /// !foo = !{ !1, !2 } |
| 758 | bool LLParser::parseNamedMetadata() { |
| 759 | assert(Lex.getKind() == lltok::MetadataVar); |
| 760 | std::string Name = Lex.getStrVal(); |
| 761 | Lex.Lex(); |
| 762 | |
| 763 | if (parseToken(lltok::equal, "expected '=' here" ) || |
| 764 | parseToken(lltok::exclaim, "Expected '!' here" ) || |
| 765 | parseToken(lltok::lbrace, "Expected '{' here" )) |
| 766 | return true; |
| 767 | |
| 768 | NamedMDNode *NMD = M->getOrInsertNamedMetadata(Name); |
| 769 | if (Lex.getKind() != lltok::rbrace) |
| 770 | do { |
| 771 | MDNode *N = nullptr; |
| 772 | // parse DIExpressions inline as a special case. They are still MDNodes, |
| 773 | // so they can still appear in named metadata. Remove this logic if they |
| 774 | // become plain Metadata. |
| 775 | if (Lex.getKind() == lltok::MetadataVar && |
| 776 | Lex.getStrVal() == "DIExpression" ) { |
| 777 | if (parseDIExpression(N, /*IsDistinct=*/false)) |
| 778 | return true; |
| 779 | } else if (parseToken(lltok::exclaim, "Expected '!' here" ) || |
| 780 | parseMDNodeID(N)) { |
| 781 | return true; |
| 782 | } |
| 783 | NMD->addOperand(N); |
| 784 | } while (EatIfPresent(lltok::comma)); |
| 785 | |
| 786 | return parseToken(lltok::rbrace, "expected end of metadata node" ); |
| 787 | } |
| 788 | |
| 789 | /// parseStandaloneMetadata: |
| 790 | /// !42 = !{...} |
| 791 | bool LLParser::parseStandaloneMetadata() { |
| 792 | assert(Lex.getKind() == lltok::exclaim); |
| 793 | Lex.Lex(); |
| 794 | unsigned MetadataID = 0; |
| 795 | |
| 796 | MDNode *Init; |
| 797 | if (parseUInt32(MetadataID) || parseToken(lltok::equal, "expected '=' here" )) |
| 798 | return true; |
| 799 | |
| 800 | // Detect common error, from old metadata syntax. |
| 801 | if (Lex.getKind() == lltok::Type) |
| 802 | return tokError("unexpected type in metadata definition" ); |
| 803 | |
| 804 | bool IsDistinct = EatIfPresent(lltok::kw_distinct); |
| 805 | if (Lex.getKind() == lltok::MetadataVar) { |
| 806 | if (parseSpecializedMDNode(Init, IsDistinct)) |
| 807 | return true; |
| 808 | } else if (parseToken(lltok::exclaim, "Expected '!' here" ) || |
| 809 | parseMDTuple(Init, IsDistinct)) |
| 810 | return true; |
| 811 | |
| 812 | // See if this was forward referenced, if so, handle it. |
| 813 | auto FI = ForwardRefMDNodes.find(MetadataID); |
| 814 | if (FI != ForwardRefMDNodes.end()) { |
| 815 | FI->second.first->replaceAllUsesWith(Init); |
| 816 | ForwardRefMDNodes.erase(FI); |
| 817 | |
| 818 | assert(NumberedMetadata[MetadataID] == Init && "Tracking VH didn't work" ); |
| 819 | } else { |
| 820 | if (NumberedMetadata.count(MetadataID)) |
| 821 | return tokError("Metadata id is already used" ); |
| 822 | NumberedMetadata[MetadataID].reset(Init); |
| 823 | } |
| 824 | |
| 825 | return false; |
| 826 | } |
| 827 | |
| 828 | // Skips a single module summary entry. |
| 829 | bool LLParser::skipModuleSummaryEntry() { |
| 830 | // Each module summary entry consists of a tag for the entry |
| 831 | // type, followed by a colon, then the fields which may be surrounded by |
| 832 | // nested sets of parentheses. The "tag:" looks like a Label. Once parsing |
| 833 | // support is in place we will look for the tokens corresponding to the |
| 834 | // expected tags. |
| 835 | if (Lex.getKind() != lltok::kw_gv && Lex.getKind() != lltok::kw_module && |
| 836 | Lex.getKind() != lltok::kw_typeid && Lex.getKind() != lltok::kw_flags && |
| 837 | Lex.getKind() != lltok::kw_blockcount) |
| 838 | return tokError( |
| 839 | "Expected 'gv', 'module', 'typeid', 'flags' or 'blockcount' at the " |
| 840 | "start of summary entry" ); |
| 841 | if (Lex.getKind() == lltok::kw_flags) |
| 842 | return parseSummaryIndexFlags(); |
| 843 | if (Lex.getKind() == lltok::kw_blockcount) |
| 844 | return parseBlockCount(); |
| 845 | Lex.Lex(); |
| 846 | if (parseToken(lltok::colon, "expected ':' at start of summary entry" ) || |
| 847 | parseToken(lltok::lparen, "expected '(' at start of summary entry" )) |
| 848 | return true; |
| 849 | // Now walk through the parenthesized entry, until the number of open |
| 850 | // parentheses goes back down to 0 (the first '(' was parsed above). |
| 851 | unsigned NumOpenParen = 1; |
| 852 | do { |
| 853 | switch (Lex.getKind()) { |
| 854 | case lltok::lparen: |
| 855 | NumOpenParen++; |
| 856 | break; |
| 857 | case lltok::rparen: |
| 858 | NumOpenParen--; |
| 859 | break; |
| 860 | case lltok::Eof: |
| 861 | return tokError("found end of file while parsing summary entry" ); |
| 862 | default: |
| 863 | // Skip everything in between parentheses. |
| 864 | break; |
| 865 | } |
| 866 | Lex.Lex(); |
| 867 | } while (NumOpenParen > 0); |
| 868 | return false; |
| 869 | } |
| 870 | |
| 871 | /// SummaryEntry |
| 872 | /// ::= SummaryID '=' GVEntry | ModuleEntry | TypeIdEntry |
| 873 | bool LLParser::parseSummaryEntry() { |
| 874 | assert(Lex.getKind() == lltok::SummaryID); |
| 875 | unsigned SummaryID = Lex.getUIntVal(); |
| 876 | |
| 877 | // For summary entries, colons should be treated as distinct tokens, |
| 878 | // not an indication of the end of a label token. |
| 879 | Lex.setIgnoreColonInIdentifiers(true); |
| 880 | |
| 881 | Lex.Lex(); |
| 882 | if (parseToken(lltok::equal, "expected '=' here" )) |
| 883 | return true; |
| 884 | |
| 885 | // If we don't have an index object, skip the summary entry. |
| 886 | if (!Index) |
| 887 | return skipModuleSummaryEntry(); |
| 888 | |
| 889 | bool result = false; |
| 890 | switch (Lex.getKind()) { |
| 891 | case lltok::kw_gv: |
| 892 | result = parseGVEntry(SummaryID); |
| 893 | break; |
| 894 | case lltok::kw_module: |
| 895 | result = parseModuleEntry(SummaryID); |
| 896 | break; |
| 897 | case lltok::kw_typeid: |
| 898 | result = parseTypeIdEntry(SummaryID); |
| 899 | break; |
| 900 | case lltok::kw_typeidCompatibleVTable: |
| 901 | result = parseTypeIdCompatibleVtableEntry(SummaryID); |
| 902 | break; |
| 903 | case lltok::kw_flags: |
| 904 | result = parseSummaryIndexFlags(); |
| 905 | break; |
| 906 | case lltok::kw_blockcount: |
| 907 | result = parseBlockCount(); |
| 908 | break; |
| 909 | default: |
| 910 | result = error(Lex.getLoc(), "unexpected summary kind" ); |
| 911 | break; |
| 912 | } |
| 913 | Lex.setIgnoreColonInIdentifiers(false); |
| 914 | return result; |
| 915 | } |
| 916 | |
| 917 | static bool isValidVisibilityForLinkage(unsigned V, unsigned L) { |
| 918 | return !GlobalValue::isLocalLinkage((GlobalValue::LinkageTypes)L) || |
| 919 | (GlobalValue::VisibilityTypes)V == GlobalValue::DefaultVisibility; |
| 920 | } |
| 921 | |
| 922 | // If there was an explicit dso_local, update GV. In the absence of an explicit |
| 923 | // dso_local we keep the default value. |
| 924 | static void maybeSetDSOLocal(bool DSOLocal, GlobalValue &GV) { |
| 925 | if (DSOLocal) |
| 926 | GV.setDSOLocal(true); |
| 927 | } |
| 928 | |
| 929 | /// parseIndirectSymbol: |
| 930 | /// ::= GlobalVar '=' OptionalLinkage OptionalPreemptionSpecifier |
| 931 | /// OptionalVisibility OptionalDLLStorageClass |
| 932 | /// OptionalThreadLocal OptionalUnnamedAddr |
| 933 | /// 'alias|ifunc' IndirectSymbol IndirectSymbolAttr* |
| 934 | /// |
| 935 | /// IndirectSymbol |
| 936 | /// ::= TypeAndValue |
| 937 | /// |
| 938 | /// IndirectSymbolAttr |
| 939 | /// ::= ',' 'partition' StringConstant |
| 940 | /// |
| 941 | /// Everything through OptionalUnnamedAddr has already been parsed. |
| 942 | /// |
| 943 | bool LLParser::parseIndirectSymbol(const std::string &Name, LocTy NameLoc, |
| 944 | unsigned L, unsigned Visibility, |
| 945 | unsigned DLLStorageClass, bool DSOLocal, |
| 946 | GlobalVariable::ThreadLocalMode TLM, |
| 947 | GlobalVariable::UnnamedAddr UnnamedAddr) { |
| 948 | bool IsAlias; |
| 949 | if (Lex.getKind() == lltok::kw_alias) |
| 950 | IsAlias = true; |
| 951 | else if (Lex.getKind() == lltok::kw_ifunc) |
| 952 | IsAlias = false; |
| 953 | else |
| 954 | llvm_unreachable("Not an alias or ifunc!" ); |
| 955 | Lex.Lex(); |
| 956 | |
| 957 | GlobalValue::LinkageTypes Linkage = (GlobalValue::LinkageTypes) L; |
| 958 | |
| 959 | if(IsAlias && !GlobalAlias::isValidLinkage(Linkage)) |
| 960 | return error(NameLoc, "invalid linkage type for alias" ); |
| 961 | |
| 962 | if (!isValidVisibilityForLinkage(Visibility, L)) |
| 963 | return error(NameLoc, |
| 964 | "symbol with local linkage must have default visibility" ); |
| 965 | |
| 966 | Type *Ty; |
| 967 | LocTy ExplicitTypeLoc = Lex.getLoc(); |
| 968 | if (parseType(Ty) || |
| 969 | parseToken(lltok::comma, "expected comma after alias or ifunc's type" )) |
| 970 | return true; |
| 971 | |
| 972 | Constant *Aliasee; |
| 973 | LocTy AliaseeLoc = Lex.getLoc(); |
| 974 | if (Lex.getKind() != lltok::kw_bitcast && |
| 975 | Lex.getKind() != lltok::kw_getelementptr && |
| 976 | Lex.getKind() != lltok::kw_addrspacecast && |
| 977 | Lex.getKind() != lltok::kw_inttoptr) { |
| 978 | if (parseGlobalTypeAndValue(Aliasee)) |
| 979 | return true; |
| 980 | } else { |
| 981 | // The bitcast dest type is not present, it is implied by the dest type. |
| 982 | ValID ID; |
| 983 | if (parseValID(ID)) |
| 984 | return true; |
| 985 | if (ID.Kind != ValID::t_Constant) |
| 986 | return error(AliaseeLoc, "invalid aliasee" ); |
| 987 | Aliasee = ID.ConstantVal; |
| 988 | } |
| 989 | |
| 990 | Type *AliaseeType = Aliasee->getType(); |
| 991 | auto *PTy = dyn_cast<PointerType>(AliaseeType); |
| 992 | if (!PTy) |
| 993 | return error(AliaseeLoc, "An alias or ifunc must have pointer type" ); |
| 994 | unsigned AddrSpace = PTy->getAddressSpace(); |
| 995 | |
| 996 | if (IsAlias && Ty != PTy->getElementType()) |
| 997 | return error(ExplicitTypeLoc, |
| 998 | "explicit pointee type doesn't match operand's pointee type" ); |
| 999 | |
| 1000 | if (!IsAlias && !PTy->getElementType()->isFunctionTy()) |
| 1001 | return error(ExplicitTypeLoc, |
| 1002 | "explicit pointee type should be a function type" ); |
| 1003 | |
| 1004 | GlobalValue *GVal = nullptr; |
| 1005 | |
| 1006 | // See if the alias was forward referenced, if so, prepare to replace the |
| 1007 | // forward reference. |
| 1008 | if (!Name.empty()) { |
| 1009 | GVal = M->getNamedValue(Name); |
| 1010 | if (GVal) { |
| 1011 | if (!ForwardRefVals.erase(Name)) |
| 1012 | return error(NameLoc, "redefinition of global '@" + Name + "'" ); |
| 1013 | } |
| 1014 | } else { |
| 1015 | auto I = ForwardRefValIDs.find(NumberedVals.size()); |
| 1016 | if (I != ForwardRefValIDs.end()) { |
| 1017 | GVal = I->second.first; |
| 1018 | ForwardRefValIDs.erase(I); |
| 1019 | } |
| 1020 | } |
| 1021 | |
| 1022 | // Okay, create the alias but do not insert it into the module yet. |
| 1023 | std::unique_ptr<GlobalIndirectSymbol> GA; |
| 1024 | if (IsAlias) |
| 1025 | GA.reset(GlobalAlias::create(Ty, AddrSpace, |
| 1026 | (GlobalValue::LinkageTypes)Linkage, Name, |
| 1027 | Aliasee, /*Parent*/ nullptr)); |
| 1028 | else |
| 1029 | GA.reset(GlobalIFunc::create(Ty, AddrSpace, |
| 1030 | (GlobalValue::LinkageTypes)Linkage, Name, |
| 1031 | Aliasee, /*Parent*/ nullptr)); |
| 1032 | GA->setThreadLocalMode(TLM); |
| 1033 | GA->setVisibility((GlobalValue::VisibilityTypes)Visibility); |
| 1034 | GA->setDLLStorageClass((GlobalValue::DLLStorageClassTypes)DLLStorageClass); |
| 1035 | GA->setUnnamedAddr(UnnamedAddr); |
| 1036 | maybeSetDSOLocal(DSOLocal, *GA); |
| 1037 | |
| 1038 | // At this point we've parsed everything except for the IndirectSymbolAttrs. |
| 1039 | // Now parse them if there are any. |
| 1040 | while (Lex.getKind() == lltok::comma) { |
| 1041 | Lex.Lex(); |
| 1042 | |
| 1043 | if (Lex.getKind() == lltok::kw_partition) { |
| 1044 | Lex.Lex(); |
| 1045 | GA->setPartition(Lex.getStrVal()); |
| 1046 | if (parseToken(lltok::StringConstant, "expected partition string" )) |
| 1047 | return true; |
| 1048 | } else { |
| 1049 | return tokError("unknown alias or ifunc property!" ); |
| 1050 | } |
| 1051 | } |
| 1052 | |
| 1053 | if (Name.empty()) |
| 1054 | NumberedVals.push_back(GA.get()); |
| 1055 | |
| 1056 | if (GVal) { |
| 1057 | // Verify that types agree. |
| 1058 | if (GVal->getType() != GA->getType()) |
| 1059 | return error( |
| 1060 | ExplicitTypeLoc, |
| 1061 | "forward reference and definition of alias have different types" ); |
| 1062 | |
| 1063 | // If they agree, just RAUW the old value with the alias and remove the |
| 1064 | // forward ref info. |
| 1065 | GVal->replaceAllUsesWith(GA.get()); |
| 1066 | GVal->eraseFromParent(); |
| 1067 | } |
| 1068 | |
| 1069 | // Insert into the module, we know its name won't collide now. |
| 1070 | if (IsAlias) |
| 1071 | M->getAliasList().push_back(cast<GlobalAlias>(GA.get())); |
| 1072 | else |
| 1073 | M->getIFuncList().push_back(cast<GlobalIFunc>(GA.get())); |
| 1074 | assert(GA->getName() == Name && "Should not be a name conflict!" ); |
| 1075 | |
| 1076 | // The module owns this now |
| 1077 | GA.release(); |
| 1078 | |
| 1079 | return false; |
| 1080 | } |
| 1081 | |
| 1082 | /// parseGlobal |
| 1083 | /// ::= GlobalVar '=' OptionalLinkage OptionalPreemptionSpecifier |
| 1084 | /// OptionalVisibility OptionalDLLStorageClass |
| 1085 | /// OptionalThreadLocal OptionalUnnamedAddr OptionalAddrSpace |
| 1086 | /// OptionalExternallyInitialized GlobalType Type Const OptionalAttrs |
| 1087 | /// ::= OptionalLinkage OptionalPreemptionSpecifier OptionalVisibility |
| 1088 | /// OptionalDLLStorageClass OptionalThreadLocal OptionalUnnamedAddr |
| 1089 | /// OptionalAddrSpace OptionalExternallyInitialized GlobalType Type |
| 1090 | /// Const OptionalAttrs |
| 1091 | /// |
| 1092 | /// Everything up to and including OptionalUnnamedAddr has been parsed |
| 1093 | /// already. |
| 1094 | /// |
| 1095 | bool LLParser::parseGlobal(const std::string &Name, LocTy NameLoc, |
| 1096 | unsigned Linkage, bool HasLinkage, |
| 1097 | unsigned Visibility, unsigned DLLStorageClass, |
| 1098 | bool DSOLocal, GlobalVariable::ThreadLocalMode TLM, |
| 1099 | GlobalVariable::UnnamedAddr UnnamedAddr) { |
| 1100 | if (!isValidVisibilityForLinkage(Visibility, Linkage)) |
| 1101 | return error(NameLoc, |
| 1102 | "symbol with local linkage must have default visibility" ); |
| 1103 | |
| 1104 | unsigned AddrSpace; |
| 1105 | bool IsConstant, IsExternallyInitialized; |
| 1106 | LocTy IsExternallyInitializedLoc; |
| 1107 | LocTy TyLoc; |
| 1108 | |
| 1109 | Type *Ty = nullptr; |
| 1110 | if (parseOptionalAddrSpace(AddrSpace) || |
| 1111 | parseOptionalToken(lltok::kw_externally_initialized, |
| 1112 | IsExternallyInitialized, |
| 1113 | &IsExternallyInitializedLoc) || |
| 1114 | parseGlobalType(IsConstant) || parseType(Ty, TyLoc)) |
| 1115 | return true; |
| 1116 | |
| 1117 | // If the linkage is specified and is external, then no initializer is |
| 1118 | // present. |
| 1119 | Constant *Init = nullptr; |
| 1120 | if (!HasLinkage || |
| 1121 | !GlobalValue::isValidDeclarationLinkage( |
| 1122 | (GlobalValue::LinkageTypes)Linkage)) { |
| 1123 | if (parseGlobalValue(Ty, Init)) |
| 1124 | return true; |
| 1125 | } |
| 1126 | |
| 1127 | if (Ty->isFunctionTy() || !PointerType::isValidElementType(Ty)) |
| 1128 | return error(TyLoc, "invalid type for global variable" ); |
| 1129 | |
| 1130 | GlobalValue *GVal = nullptr; |
| 1131 | |
| 1132 | // See if the global was forward referenced, if so, use the global. |
| 1133 | if (!Name.empty()) { |
| 1134 | GVal = M->getNamedValue(Name); |
| 1135 | if (GVal) { |
| 1136 | if (!ForwardRefVals.erase(Name)) |
| 1137 | return error(NameLoc, "redefinition of global '@" + Name + "'" ); |
| 1138 | } |
| 1139 | } else { |
| 1140 | auto I = ForwardRefValIDs.find(NumberedVals.size()); |
| 1141 | if (I != ForwardRefValIDs.end()) { |
| 1142 | GVal = I->second.first; |
| 1143 | ForwardRefValIDs.erase(I); |
| 1144 | } |
| 1145 | } |
| 1146 | |
| 1147 | GlobalVariable *GV; |
| 1148 | if (!GVal) { |
| 1149 | GV = new GlobalVariable(*M, Ty, false, GlobalValue::ExternalLinkage, nullptr, |
| 1150 | Name, nullptr, GlobalVariable::NotThreadLocal, |
| 1151 | AddrSpace); |
| 1152 | } else { |
| 1153 | if (GVal->getValueType() != Ty) |
| 1154 | return error( |
| 1155 | TyLoc, |
| 1156 | "forward reference and definition of global have different types" ); |
| 1157 | |
| 1158 | GV = cast<GlobalVariable>(GVal); |
| 1159 | |
| 1160 | // Move the forward-reference to the correct spot in the module. |
| 1161 | M->getGlobalList().splice(M->global_end(), M->getGlobalList(), GV); |
| 1162 | } |
| 1163 | |
| 1164 | if (Name.empty()) |
| 1165 | NumberedVals.push_back(GV); |
| 1166 | |
| 1167 | // Set the parsed properties on the global. |
| 1168 | if (Init) |
| 1169 | GV->setInitializer(Init); |
| 1170 | GV->setConstant(IsConstant); |
| 1171 | GV->setLinkage((GlobalValue::LinkageTypes)Linkage); |
| 1172 | maybeSetDSOLocal(DSOLocal, *GV); |
| 1173 | GV->setVisibility((GlobalValue::VisibilityTypes)Visibility); |
| 1174 | GV->setDLLStorageClass((GlobalValue::DLLStorageClassTypes)DLLStorageClass); |
| 1175 | GV->setExternallyInitialized(IsExternallyInitialized); |
| 1176 | GV->setThreadLocalMode(TLM); |
| 1177 | GV->setUnnamedAddr(UnnamedAddr); |
| 1178 | |
| 1179 | // parse attributes on the global. |
| 1180 | while (Lex.getKind() == lltok::comma) { |
| 1181 | Lex.Lex(); |
| 1182 | |
| 1183 | if (Lex.getKind() == lltok::kw_section) { |
| 1184 | Lex.Lex(); |
| 1185 | GV->setSection(Lex.getStrVal()); |
| 1186 | if (parseToken(lltok::StringConstant, "expected global section string" )) |
| 1187 | return true; |
| 1188 | } else if (Lex.getKind() == lltok::kw_partition) { |
| 1189 | Lex.Lex(); |
| 1190 | GV->setPartition(Lex.getStrVal()); |
| 1191 | if (parseToken(lltok::StringConstant, "expected partition string" )) |
| 1192 | return true; |
| 1193 | } else if (Lex.getKind() == lltok::kw_align) { |
| 1194 | MaybeAlign Alignment; |
| 1195 | if (parseOptionalAlignment(Alignment)) |
| 1196 | return true; |
| 1197 | GV->setAlignment(Alignment); |
| 1198 | } else if (Lex.getKind() == lltok::MetadataVar) { |
| 1199 | if (parseGlobalObjectMetadataAttachment(*GV)) |
| 1200 | return true; |
| 1201 | } else { |
| 1202 | Comdat *C; |
| 1203 | if (parseOptionalComdat(Name, C)) |
| 1204 | return true; |
| 1205 | if (C) |
| 1206 | GV->setComdat(C); |
| 1207 | else |
| 1208 | return tokError("unknown global variable property!" ); |
| 1209 | } |
| 1210 | } |
| 1211 | |
| 1212 | AttrBuilder Attrs; |
| 1213 | LocTy BuiltinLoc; |
| 1214 | std::vector<unsigned> FwdRefAttrGrps; |
| 1215 | if (parseFnAttributeValuePairs(Attrs, FwdRefAttrGrps, false, BuiltinLoc)) |
| 1216 | return true; |
| 1217 | if (Attrs.hasAttributes() || !FwdRefAttrGrps.empty()) { |
| 1218 | GV->setAttributes(AttributeSet::get(Context, Attrs)); |
| 1219 | ForwardRefAttrGroups[GV] = FwdRefAttrGrps; |
| 1220 | } |
| 1221 | |
| 1222 | return false; |
| 1223 | } |
| 1224 | |
| 1225 | /// parseUnnamedAttrGrp |
| 1226 | /// ::= 'attributes' AttrGrpID '=' '{' AttrValPair+ '}' |
| 1227 | bool LLParser::parseUnnamedAttrGrp() { |
| 1228 | assert(Lex.getKind() == lltok::kw_attributes); |
| 1229 | LocTy AttrGrpLoc = Lex.getLoc(); |
| 1230 | Lex.Lex(); |
| 1231 | |
| 1232 | if (Lex.getKind() != lltok::AttrGrpID) |
| 1233 | return tokError("expected attribute group id" ); |
| 1234 | |
| 1235 | unsigned VarID = Lex.getUIntVal(); |
| 1236 | std::vector<unsigned> unused; |
| 1237 | LocTy BuiltinLoc; |
| 1238 | Lex.Lex(); |
| 1239 | |
| 1240 | if (parseToken(lltok::equal, "expected '=' here" ) || |
| 1241 | parseToken(lltok::lbrace, "expected '{' here" ) || |
| 1242 | parseFnAttributeValuePairs(NumberedAttrBuilders[VarID], unused, true, |
| 1243 | BuiltinLoc) || |
| 1244 | parseToken(lltok::rbrace, "expected end of attribute group" )) |
| 1245 | return true; |
| 1246 | |
| 1247 | if (!NumberedAttrBuilders[VarID].hasAttributes()) |
| 1248 | return error(AttrGrpLoc, "attribute group has no attributes" ); |
| 1249 | |
| 1250 | return false; |
| 1251 | } |
| 1252 | |
| 1253 | /// parseFnAttributeValuePairs |
| 1254 | /// ::= <attr> | <attr> '=' <value> |
| 1255 | bool LLParser::parseFnAttributeValuePairs(AttrBuilder &B, |
| 1256 | std::vector<unsigned> &FwdRefAttrGrps, |
| 1257 | bool inAttrGrp, LocTy &BuiltinLoc) { |
| 1258 | bool HaveError = false; |
| 1259 | |
| 1260 | B.clear(); |
| 1261 | |
| 1262 | while (true) { |
| 1263 | lltok::Kind Token = Lex.getKind(); |
| 1264 | if (Token == lltok::kw_builtin) |
| 1265 | BuiltinLoc = Lex.getLoc(); |
| 1266 | switch (Token) { |
| 1267 | default: |
| 1268 | if (!inAttrGrp) return HaveError; |
| 1269 | return error(Lex.getLoc(), "unterminated attribute group" ); |
| 1270 | case lltok::rbrace: |
| 1271 | // Finished. |
| 1272 | return false; |
| 1273 | |
| 1274 | case lltok::AttrGrpID: { |
| 1275 | // Allow a function to reference an attribute group: |
| 1276 | // |
| 1277 | // define void @foo() #1 { ... } |
| 1278 | if (inAttrGrp) |
| 1279 | HaveError |= error( |
| 1280 | Lex.getLoc(), |
| 1281 | "cannot have an attribute group reference in an attribute group" ); |
| 1282 | |
| 1283 | unsigned AttrGrpNum = Lex.getUIntVal(); |
| 1284 | if (inAttrGrp) break; |
| 1285 | |
| 1286 | // Save the reference to the attribute group. We'll fill it in later. |
| 1287 | FwdRefAttrGrps.push_back(AttrGrpNum); |
| 1288 | break; |
| 1289 | } |
| 1290 | // Target-dependent attributes: |
| 1291 | case lltok::StringConstant: { |
| 1292 | if (parseStringAttribute(B)) |
| 1293 | return true; |
| 1294 | continue; |
| 1295 | } |
| 1296 | |
| 1297 | // Target-independent attributes: |
| 1298 | case lltok::kw_align: { |
| 1299 | // As a hack, we allow function alignment to be initially parsed as an |
| 1300 | // attribute on a function declaration/definition or added to an attribute |
| 1301 | // group and later moved to the alignment field. |
| 1302 | MaybeAlign Alignment; |
| 1303 | if (inAttrGrp) { |
| 1304 | Lex.Lex(); |
| 1305 | uint32_t Value = 0; |
| 1306 | if (parseToken(lltok::equal, "expected '=' here" ) || parseUInt32(Value)) |
| 1307 | return true; |
| 1308 | Alignment = Align(Value); |
| 1309 | } else { |
| 1310 | if (parseOptionalAlignment(Alignment)) |
| 1311 | return true; |
| 1312 | } |
| 1313 | B.addAlignmentAttr(Alignment); |
| 1314 | continue; |
| 1315 | } |
| 1316 | case lltok::kw_alignstack: { |
| 1317 | unsigned Alignment; |
| 1318 | if (inAttrGrp) { |
| 1319 | Lex.Lex(); |
| 1320 | if (parseToken(lltok::equal, "expected '=' here" ) || |
| 1321 | parseUInt32(Alignment)) |
| 1322 | return true; |
| 1323 | } else { |
| 1324 | if (parseOptionalStackAlignment(Alignment)) |
| 1325 | return true; |
| 1326 | } |
| 1327 | B.addStackAlignmentAttr(Alignment); |
| 1328 | continue; |
| 1329 | } |
| 1330 | case lltok::kw_allocsize: { |
| 1331 | unsigned ElemSizeArg; |
| 1332 | Optional<unsigned> NumElemsArg; |
| 1333 | // inAttrGrp doesn't matter; we only support allocsize(a[, b]) |
| 1334 | if (parseAllocSizeArguments(ElemSizeArg, NumElemsArg)) |
| 1335 | return true; |
| 1336 | B.addAllocSizeAttr(ElemSizeArg, NumElemsArg); |
| 1337 | continue; |
| 1338 | } |
| 1339 | case lltok::kw_alwaysinline: B.addAttribute(Attribute::AlwaysInline); break; |
| 1340 | case lltok::kw_argmemonly: B.addAttribute(Attribute::ArgMemOnly); break; |
| 1341 | case lltok::kw_builtin: B.addAttribute(Attribute::Builtin); break; |
| 1342 | case lltok::kw_cold: B.addAttribute(Attribute::Cold); break; |
| 1343 | case lltok::kw_hot: B.addAttribute(Attribute::Hot); break; |
| 1344 | case lltok::kw_convergent: B.addAttribute(Attribute::Convergent); break; |
| 1345 | case lltok::kw_inaccessiblememonly: |
| 1346 | B.addAttribute(Attribute::InaccessibleMemOnly); break; |
| 1347 | case lltok::kw_inaccessiblemem_or_argmemonly: |
| 1348 | B.addAttribute(Attribute::InaccessibleMemOrArgMemOnly); break; |
| 1349 | case lltok::kw_inlinehint: B.addAttribute(Attribute::InlineHint); break; |
| 1350 | case lltok::kw_jumptable: B.addAttribute(Attribute::JumpTable); break; |
| 1351 | case lltok::kw_minsize: B.addAttribute(Attribute::MinSize); break; |
| 1352 | case lltok::kw_mustprogress: |
| 1353 | B.addAttribute(Attribute::MustProgress); |
| 1354 | break; |
| 1355 | case lltok::kw_naked: B.addAttribute(Attribute::Naked); break; |
| 1356 | case lltok::kw_nobuiltin: B.addAttribute(Attribute::NoBuiltin); break; |
| 1357 | case lltok::kw_nocallback: |
| 1358 | B.addAttribute(Attribute::NoCallback); |
| 1359 | break; |
| 1360 | case lltok::kw_noduplicate: B.addAttribute(Attribute::NoDuplicate); break; |
| 1361 | case lltok::kw_nofree: B.addAttribute(Attribute::NoFree); break; |
| 1362 | case lltok::kw_noimplicitfloat: |
| 1363 | B.addAttribute(Attribute::NoImplicitFloat); break; |
| 1364 | case lltok::kw_noinline: B.addAttribute(Attribute::NoInline); break; |
| 1365 | case lltok::kw_nonlazybind: B.addAttribute(Attribute::NonLazyBind); break; |
| 1366 | case lltok::kw_nomerge: B.addAttribute(Attribute::NoMerge); break; |
| 1367 | case lltok::kw_noredzone: B.addAttribute(Attribute::NoRedZone); break; |
| 1368 | case lltok::kw_noreturn: B.addAttribute(Attribute::NoReturn); break; |
| 1369 | case lltok::kw_nosync: B.addAttribute(Attribute::NoSync); break; |
| 1370 | case lltok::kw_nocf_check: B.addAttribute(Attribute::NoCfCheck); break; |
| 1371 | case lltok::kw_noprofile: B.addAttribute(Attribute::NoProfile); break; |
| 1372 | case lltok::kw_norecurse: B.addAttribute(Attribute::NoRecurse); break; |
| 1373 | case lltok::kw_nounwind: B.addAttribute(Attribute::NoUnwind); break; |
| 1374 | case lltok::kw_null_pointer_is_valid: |
| 1375 | B.addAttribute(Attribute::NullPointerIsValid); break; |
| 1376 | case lltok::kw_optforfuzzing: |
| 1377 | B.addAttribute(Attribute::OptForFuzzing); break; |
| 1378 | case lltok::kw_optnone: B.addAttribute(Attribute::OptimizeNone); break; |
| 1379 | case lltok::kw_optsize: B.addAttribute(Attribute::OptimizeForSize); break; |
| 1380 | case lltok::kw_readnone: B.addAttribute(Attribute::ReadNone); break; |
| 1381 | case lltok::kw_readonly: B.addAttribute(Attribute::ReadOnly); break; |
| 1382 | case lltok::kw_returns_twice: |
| 1383 | B.addAttribute(Attribute::ReturnsTwice); break; |
| 1384 | case lltok::kw_speculatable: B.addAttribute(Attribute::Speculatable); break; |
| 1385 | case lltok::kw_ssp: B.addAttribute(Attribute::StackProtect); break; |
| 1386 | case lltok::kw_sspreq: B.addAttribute(Attribute::StackProtectReq); break; |
| 1387 | case lltok::kw_sspstrong: |
| 1388 | B.addAttribute(Attribute::StackProtectStrong); break; |
| 1389 | case lltok::kw_safestack: B.addAttribute(Attribute::SafeStack); break; |
| 1390 | case lltok::kw_shadowcallstack: |
| 1391 | B.addAttribute(Attribute::ShadowCallStack); break; |
| 1392 | case lltok::kw_sanitize_address: |
| 1393 | B.addAttribute(Attribute::SanitizeAddress); break; |
| 1394 | case lltok::kw_sanitize_hwaddress: |
| 1395 | B.addAttribute(Attribute::SanitizeHWAddress); break; |
| 1396 | case lltok::kw_sanitize_memtag: |
| 1397 | B.addAttribute(Attribute::SanitizeMemTag); break; |
| 1398 | case lltok::kw_sanitize_thread: |
| 1399 | B.addAttribute(Attribute::SanitizeThread); break; |
| 1400 | case lltok::kw_sanitize_memory: |
| 1401 | B.addAttribute(Attribute::SanitizeMemory); break; |
| 1402 | case lltok::kw_speculative_load_hardening: |
| 1403 | B.addAttribute(Attribute::SpeculativeLoadHardening); |
| 1404 | break; |
| 1405 | case lltok::kw_strictfp: B.addAttribute(Attribute::StrictFP); break; |
| 1406 | case lltok::kw_uwtable: B.addAttribute(Attribute::UWTable); break; |
| 1407 | case lltok::kw_willreturn: B.addAttribute(Attribute::WillReturn); break; |
| 1408 | case lltok::kw_writeonly: B.addAttribute(Attribute::WriteOnly); break; |
| 1409 | case lltok::kw_preallocated: { |
| 1410 | Type *Ty; |
| 1411 | if (parsePreallocated(Ty)) |
| 1412 | return true; |
| 1413 | B.addPreallocatedAttr(Ty); |
| 1414 | break; |
| 1415 | } |
| 1416 | |
| 1417 | // error handling. |
| 1418 | case lltok::kw_inreg: |
| 1419 | case lltok::kw_signext: |
| 1420 | case lltok::kw_zeroext: |
| 1421 | HaveError |= |
| 1422 | error(Lex.getLoc(), "invalid use of attribute on a function" ); |
| 1423 | break; |
| 1424 | case lltok::kw_byval: |
| 1425 | case lltok::kw_dereferenceable: |
| 1426 | case lltok::kw_dereferenceable_or_null: |
| 1427 | case lltok::kw_inalloca: |
| 1428 | case lltok::kw_nest: |
| 1429 | case lltok::kw_noalias: |
| 1430 | case lltok::kw_noundef: |
| 1431 | case lltok::kw_nocapture: |
| 1432 | case lltok::kw_nonnull: |
| 1433 | case lltok::kw_returned: |
| 1434 | case lltok::kw_sret: |
| 1435 | case lltok::kw_swifterror: |
| 1436 | case lltok::kw_swiftself: |
| 1437 | case lltok::kw_immarg: |
| 1438 | case lltok::kw_byref: |
| 1439 | HaveError |= |
| 1440 | error(Lex.getLoc(), |
| 1441 | "invalid use of parameter-only attribute on a function" ); |
| 1442 | break; |
| 1443 | } |
| 1444 | |
| 1445 | // parsePreallocated() consumes token |
| 1446 | if (Token != lltok::kw_preallocated) |
| 1447 | Lex.Lex(); |
| 1448 | } |
| 1449 | } |
| 1450 | |
| 1451 | //===----------------------------------------------------------------------===// |
| 1452 | // GlobalValue Reference/Resolution Routines. |
| 1453 | //===----------------------------------------------------------------------===// |
| 1454 | |
| 1455 | static inline GlobalValue *createGlobalFwdRef(Module *M, PointerType *PTy, |
| 1456 | const std::string &Name) { |
| 1457 | if (auto *FT = dyn_cast<FunctionType>(PTy->getElementType())) |
| 1458 | return Function::Create(FT, GlobalValue::ExternalWeakLinkage, |
| 1459 | PTy->getAddressSpace(), Name, M); |
| 1460 | else |
| 1461 | return new GlobalVariable(*M, PTy->getElementType(), false, |
| 1462 | GlobalValue::ExternalWeakLinkage, nullptr, Name, |
| 1463 | nullptr, GlobalVariable::NotThreadLocal, |
| 1464 | PTy->getAddressSpace()); |
| 1465 | } |
| 1466 | |
| 1467 | Value *LLParser::checkValidVariableType(LocTy Loc, const Twine &Name, Type *Ty, |
| 1468 | Value *Val, bool IsCall) { |
| 1469 | if (Val->getType() == Ty) |
| 1470 | return Val; |
| 1471 | // For calls we also accept variables in the program address space. |
| 1472 | Type *SuggestedTy = Ty; |
| 1473 | if (IsCall && isa<PointerType>(Ty)) { |
| 1474 | Type *TyInProgAS = cast<PointerType>(Ty)->getElementType()->getPointerTo( |
| 1475 | M->getDataLayout().getProgramAddressSpace()); |
| 1476 | SuggestedTy = TyInProgAS; |
| 1477 | if (Val->getType() == TyInProgAS) |
| 1478 | return Val; |
| 1479 | } |
| 1480 | if (Ty->isLabelTy()) |
| 1481 | error(Loc, "'" + Name + "' is not a basic block" ); |
| 1482 | else |
| 1483 | error(Loc, "'" + Name + "' defined with type '" + |
| 1484 | getTypeString(Val->getType()) + "' but expected '" + |
| 1485 | getTypeString(SuggestedTy) + "'" ); |
| 1486 | return nullptr; |
| 1487 | } |
| 1488 | |
| 1489 | /// getGlobalVal - Get a value with the specified name or ID, creating a |
| 1490 | /// forward reference record if needed. This can return null if the value |
| 1491 | /// exists but does not have the right type. |
| 1492 | GlobalValue *LLParser::getGlobalVal(const std::string &Name, Type *Ty, |
| 1493 | LocTy Loc, bool IsCall) { |
| 1494 | PointerType *PTy = dyn_cast<PointerType>(Ty); |
| 1495 | if (!PTy) { |
| 1496 | error(Loc, "global variable reference must have pointer type" ); |
| 1497 | return nullptr; |
| 1498 | } |
| 1499 | |
| 1500 | // Look this name up in the normal function symbol table. |
| 1501 | GlobalValue *Val = |
| 1502 | cast_or_null<GlobalValue>(M->getValueSymbolTable().lookup(Name)); |
| 1503 | |
| 1504 | // If this is a forward reference for the value, see if we already created a |
| 1505 | // forward ref record. |
| 1506 | if (!Val) { |
| 1507 | auto I = ForwardRefVals.find(Name); |
| 1508 | if (I != ForwardRefVals.end()) |
| 1509 | Val = I->second.first; |
| 1510 | } |
| 1511 | |
| 1512 | // If we have the value in the symbol table or fwd-ref table, return it. |
| 1513 | if (Val) |
| 1514 | return cast_or_null<GlobalValue>( |
| 1515 | checkValidVariableType(Loc, "@" + Name, Ty, Val, IsCall)); |
| 1516 | |
| 1517 | // Otherwise, create a new forward reference for this value and remember it. |
| 1518 | GlobalValue *FwdVal = createGlobalFwdRef(M, PTy, Name); |
| 1519 | ForwardRefVals[Name] = std::make_pair(FwdVal, Loc); |
| 1520 | return FwdVal; |
| 1521 | } |
| 1522 | |
| 1523 | GlobalValue *LLParser::getGlobalVal(unsigned ID, Type *Ty, LocTy Loc, |
| 1524 | bool IsCall) { |
| 1525 | PointerType *PTy = dyn_cast<PointerType>(Ty); |
| 1526 | if (!PTy) { |
| 1527 | error(Loc, "global variable reference must have pointer type" ); |
| 1528 | return nullptr; |
| 1529 | } |
| 1530 | |
| 1531 | GlobalValue *Val = ID < NumberedVals.size() ? NumberedVals[ID] : nullptr; |
| 1532 | |
| 1533 | // If this is a forward reference for the value, see if we already created a |
| 1534 | // forward ref record. |
| 1535 | if (!Val) { |
| 1536 | auto I = ForwardRefValIDs.find(ID); |
| 1537 | if (I != ForwardRefValIDs.end()) |
| 1538 | Val = I->second.first; |
| 1539 | } |
| 1540 | |
| 1541 | // If we have the value in the symbol table or fwd-ref table, return it. |
| 1542 | if (Val) |
| 1543 | return cast_or_null<GlobalValue>( |
| 1544 | checkValidVariableType(Loc, "@" + Twine(ID), Ty, Val, IsCall)); |
| 1545 | |
| 1546 | // Otherwise, create a new forward reference for this value and remember it. |
| 1547 | GlobalValue *FwdVal = createGlobalFwdRef(M, PTy, "" ); |
| 1548 | ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc); |
| 1549 | return FwdVal; |
| 1550 | } |
| 1551 | |
| 1552 | //===----------------------------------------------------------------------===// |
| 1553 | // Comdat Reference/Resolution Routines. |
| 1554 | //===----------------------------------------------------------------------===// |
| 1555 | |
| 1556 | Comdat *LLParser::getComdat(const std::string &Name, LocTy Loc) { |
| 1557 | // Look this name up in the comdat symbol table. |
| 1558 | Module::ComdatSymTabType &ComdatSymTab = M->getComdatSymbolTable(); |
| 1559 | Module::ComdatSymTabType::iterator I = ComdatSymTab.find(Name); |
| 1560 | if (I != ComdatSymTab.end()) |
| 1561 | return &I->second; |
| 1562 | |
| 1563 | // Otherwise, create a new forward reference for this value and remember it. |
| 1564 | Comdat *C = M->getOrInsertComdat(Name); |
| 1565 | ForwardRefComdats[Name] = Loc; |
| 1566 | return C; |
| 1567 | } |
| 1568 | |
| 1569 | //===----------------------------------------------------------------------===// |
| 1570 | // Helper Routines. |
| 1571 | //===----------------------------------------------------------------------===// |
| 1572 | |
| 1573 | /// parseToken - If the current token has the specified kind, eat it and return |
| 1574 | /// success. Otherwise, emit the specified error and return failure. |
| 1575 | bool LLParser::parseToken(lltok::Kind T, const char *ErrMsg) { |
| 1576 | if (Lex.getKind() != T) |
| 1577 | return tokError(ErrMsg); |
| 1578 | Lex.Lex(); |
| 1579 | return false; |
| 1580 | } |
| 1581 | |
| 1582 | /// parseStringConstant |
| 1583 | /// ::= StringConstant |
| 1584 | bool LLParser::parseStringConstant(std::string &Result) { |
| 1585 | if (Lex.getKind() != lltok::StringConstant) |
| 1586 | return tokError("expected string constant" ); |
| 1587 | Result = Lex.getStrVal(); |
| 1588 | Lex.Lex(); |
| 1589 | return false; |
| 1590 | } |
| 1591 | |
| 1592 | /// parseUInt32 |
| 1593 | /// ::= uint32 |
| 1594 | bool LLParser::parseUInt32(uint32_t &Val) { |
| 1595 | if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned()) |
| 1596 | return tokError("expected integer" ); |
| 1597 | uint64_t Val64 = Lex.getAPSIntVal().getLimitedValue(0xFFFFFFFFULL+1); |
| 1598 | if (Val64 != unsigned(Val64)) |
| 1599 | return tokError("expected 32-bit integer (too large)" ); |
| 1600 | Val = Val64; |
| 1601 | Lex.Lex(); |
| 1602 | return false; |
| 1603 | } |
| 1604 | |
| 1605 | /// parseUInt64 |
| 1606 | /// ::= uint64 |
| 1607 | bool LLParser::parseUInt64(uint64_t &Val) { |
| 1608 | if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned()) |
| 1609 | return tokError("expected integer" ); |
| 1610 | Val = Lex.getAPSIntVal().getLimitedValue(); |
| 1611 | Lex.Lex(); |
| 1612 | return false; |
| 1613 | } |
| 1614 | |
| 1615 | /// parseTLSModel |
| 1616 | /// := 'localdynamic' |
| 1617 | /// := 'initialexec' |
| 1618 | /// := 'localexec' |
| 1619 | bool LLParser::parseTLSModel(GlobalVariable::ThreadLocalMode &TLM) { |
| 1620 | switch (Lex.getKind()) { |
| 1621 | default: |
| 1622 | return tokError("expected localdynamic, initialexec or localexec" ); |
| 1623 | case lltok::kw_localdynamic: |
| 1624 | TLM = GlobalVariable::LocalDynamicTLSModel; |
| 1625 | break; |
| 1626 | case lltok::kw_initialexec: |
| 1627 | TLM = GlobalVariable::InitialExecTLSModel; |
| 1628 | break; |
| 1629 | case lltok::kw_localexec: |
| 1630 | TLM = GlobalVariable::LocalExecTLSModel; |
| 1631 | break; |
| 1632 | } |
| 1633 | |
| 1634 | Lex.Lex(); |
| 1635 | return false; |
| 1636 | } |
| 1637 | |
| 1638 | /// parseOptionalThreadLocal |
| 1639 | /// := /*empty*/ |
| 1640 | /// := 'thread_local' |
| 1641 | /// := 'thread_local' '(' tlsmodel ')' |
| 1642 | bool LLParser::parseOptionalThreadLocal(GlobalVariable::ThreadLocalMode &TLM) { |
| 1643 | TLM = GlobalVariable::NotThreadLocal; |
| 1644 | if (!EatIfPresent(lltok::kw_thread_local)) |
| 1645 | return false; |
| 1646 | |
| 1647 | TLM = GlobalVariable::GeneralDynamicTLSModel; |
| 1648 | if (Lex.getKind() == lltok::lparen) { |
| 1649 | Lex.Lex(); |
| 1650 | return parseTLSModel(TLM) || |
| 1651 | parseToken(lltok::rparen, "expected ')' after thread local model" ); |
| 1652 | } |
| 1653 | return false; |
| 1654 | } |
| 1655 | |
| 1656 | /// parseOptionalAddrSpace |
| 1657 | /// := /*empty*/ |
| 1658 | /// := 'addrspace' '(' uint32 ')' |
| 1659 | bool LLParser::parseOptionalAddrSpace(unsigned &AddrSpace, unsigned DefaultAS) { |
| 1660 | AddrSpace = DefaultAS; |
| 1661 | if (!EatIfPresent(lltok::kw_addrspace)) |
| 1662 | return false; |
| 1663 | return parseToken(lltok::lparen, "expected '(' in address space" ) || |
| 1664 | parseUInt32(AddrSpace) || |
| 1665 | parseToken(lltok::rparen, "expected ')' in address space" ); |
| 1666 | } |
| 1667 | |
| 1668 | /// parseStringAttribute |
| 1669 | /// := StringConstant |
| 1670 | /// := StringConstant '=' StringConstant |
| 1671 | bool LLParser::parseStringAttribute(AttrBuilder &B) { |
| 1672 | std::string Attr = Lex.getStrVal(); |
| 1673 | Lex.Lex(); |
| 1674 | std::string Val; |
| 1675 | if (EatIfPresent(lltok::equal) && parseStringConstant(Val)) |
| 1676 | return true; |
| 1677 | B.addAttribute(Attr, Val); |
| 1678 | return false; |
| 1679 | } |
| 1680 | |
| 1681 | /// parseOptionalParamAttrs - parse a potentially empty list of parameter |
| 1682 | /// attributes. |
| 1683 | bool LLParser::parseOptionalParamAttrs(AttrBuilder &B) { |
| 1684 | bool HaveError = false; |
| 1685 | |
| 1686 | B.clear(); |
| 1687 | |
| 1688 | while (true) { |
| 1689 | lltok::Kind Token = Lex.getKind(); |
| 1690 | switch (Token) { |
| 1691 | default: // End of attributes. |
| 1692 | return HaveError; |
| 1693 | case lltok::StringConstant: { |
| 1694 | if (parseStringAttribute(B)) |
| 1695 | return true; |
| 1696 | continue; |
| 1697 | } |
| 1698 | case lltok::kw_align: { |
| 1699 | MaybeAlign Alignment; |
| 1700 | if (parseOptionalAlignment(Alignment, true)) |
| 1701 | return true; |
| 1702 | B.addAlignmentAttr(Alignment); |
| 1703 | continue; |
| 1704 | } |
| 1705 | case lltok::kw_byval: { |
| 1706 | Type *Ty; |
| 1707 | if (parseRequiredTypeAttr(Ty, lltok::kw_byval)) |
| 1708 | return true; |
| 1709 | B.addByValAttr(Ty); |
| 1710 | continue; |
| 1711 | } |
| 1712 | case lltok::kw_sret: { |
| 1713 | Type *Ty; |
| 1714 | if (parseRequiredTypeAttr(Ty, lltok::kw_sret)) |
| 1715 | return true; |
| 1716 | B.addStructRetAttr(Ty); |
| 1717 | continue; |
| 1718 | } |
| 1719 | case lltok::kw_preallocated: { |
| 1720 | Type *Ty; |
| 1721 | if (parsePreallocated(Ty)) |
| 1722 | return true; |
| 1723 | B.addPreallocatedAttr(Ty); |
| 1724 | continue; |
| 1725 | } |
| 1726 | case lltok::kw_dereferenceable: { |
| 1727 | uint64_t Bytes; |
| 1728 | if (parseOptionalDerefAttrBytes(lltok::kw_dereferenceable, Bytes)) |
| 1729 | return true; |
| 1730 | B.addDereferenceableAttr(Bytes); |
| 1731 | continue; |
| 1732 | } |
| 1733 | case lltok::kw_dereferenceable_or_null: { |
| 1734 | uint64_t Bytes; |
| 1735 | if (parseOptionalDerefAttrBytes(lltok::kw_dereferenceable_or_null, Bytes)) |
| 1736 | return true; |
| 1737 | B.addDereferenceableOrNullAttr(Bytes); |
| 1738 | continue; |
| 1739 | } |
| 1740 | case lltok::kw_byref: { |
| 1741 | Type *Ty; |
| 1742 | if (parseByRef(Ty)) |
| 1743 | return true; |
| 1744 | B.addByRefAttr(Ty); |
| 1745 | continue; |
| 1746 | } |
| 1747 | case lltok::kw_inalloca: B.addAttribute(Attribute::InAlloca); break; |
| 1748 | case lltok::kw_inreg: B.addAttribute(Attribute::InReg); break; |
| 1749 | case lltok::kw_nest: B.addAttribute(Attribute::Nest); break; |
| 1750 | case lltok::kw_noundef: |
| 1751 | B.addAttribute(Attribute::NoUndef); |
| 1752 | break; |
| 1753 | case lltok::kw_noalias: B.addAttribute(Attribute::NoAlias); break; |
| 1754 | case lltok::kw_nocapture: B.addAttribute(Attribute::NoCapture); break; |
| 1755 | case lltok::kw_nofree: B.addAttribute(Attribute::NoFree); break; |
| 1756 | case lltok::kw_nonnull: B.addAttribute(Attribute::NonNull); break; |
| 1757 | case lltok::kw_readnone: B.addAttribute(Attribute::ReadNone); break; |
| 1758 | case lltok::kw_readonly: B.addAttribute(Attribute::ReadOnly); break; |
| 1759 | case lltok::kw_returned: B.addAttribute(Attribute::Returned); break; |
| 1760 | case lltok::kw_signext: B.addAttribute(Attribute::SExt); break; |
| 1761 | case lltok::kw_swifterror: B.addAttribute(Attribute::SwiftError); break; |
| 1762 | case lltok::kw_swiftself: B.addAttribute(Attribute::SwiftSelf); break; |
| 1763 | case lltok::kw_writeonly: B.addAttribute(Attribute::WriteOnly); break; |
| 1764 | case lltok::kw_zeroext: B.addAttribute(Attribute::ZExt); break; |
| 1765 | case lltok::kw_immarg: B.addAttribute(Attribute::ImmArg); break; |
| 1766 | |
| 1767 | case lltok::kw_alignstack: |
| 1768 | case lltok::kw_alwaysinline: |
| 1769 | case lltok::kw_argmemonly: |
| 1770 | case lltok::kw_builtin: |
| 1771 | case lltok::kw_inlinehint: |
| 1772 | case lltok::kw_jumptable: |
| 1773 | case lltok::kw_minsize: |
| 1774 | case lltok::kw_mustprogress: |
| 1775 | case lltok::kw_naked: |
| 1776 | case lltok::kw_nobuiltin: |
| 1777 | case lltok::kw_noduplicate: |
| 1778 | case lltok::kw_noimplicitfloat: |
| 1779 | case lltok::kw_noinline: |
| 1780 | case lltok::kw_nonlazybind: |
| 1781 | case lltok::kw_nomerge: |
| 1782 | case lltok::kw_noprofile: |
| 1783 | case lltok::kw_noredzone: |
| 1784 | case lltok::kw_noreturn: |
| 1785 | case lltok::kw_nocf_check: |
| 1786 | case lltok::kw_nounwind: |
| 1787 | case lltok::kw_optforfuzzing: |
| 1788 | case lltok::kw_optnone: |
| 1789 | case lltok::kw_optsize: |
| 1790 | case lltok::kw_returns_twice: |
| 1791 | case lltok::kw_sanitize_address: |
| 1792 | case lltok::kw_sanitize_hwaddress: |
| 1793 | case lltok::kw_sanitize_memtag: |
| 1794 | case lltok::kw_sanitize_memory: |
| 1795 | case lltok::kw_sanitize_thread: |
| 1796 | case lltok::kw_speculative_load_hardening: |
| 1797 | case lltok::kw_ssp: |
| 1798 | case lltok::kw_sspreq: |
| 1799 | case lltok::kw_sspstrong: |
| 1800 | case lltok::kw_safestack: |
| 1801 | case lltok::kw_shadowcallstack: |
| 1802 | case lltok::kw_strictfp: |
| 1803 | case lltok::kw_uwtable: |
| 1804 | HaveError |= |
| 1805 | error(Lex.getLoc(), "invalid use of function-only attribute" ); |
| 1806 | break; |
| 1807 | } |
| 1808 | |
| 1809 | Lex.Lex(); |
| 1810 | } |
| 1811 | } |
| 1812 | |
| 1813 | /// parseOptionalReturnAttrs - parse a potentially empty list of return |
| 1814 | /// attributes. |
| 1815 | bool LLParser::parseOptionalReturnAttrs(AttrBuilder &B) { |
| 1816 | bool HaveError = false; |
| 1817 | |
| 1818 | B.clear(); |
| 1819 | |
| 1820 | while (true) { |
| 1821 | lltok::Kind Token = Lex.getKind(); |
| 1822 | switch (Token) { |
| 1823 | default: // End of attributes. |
| 1824 | return HaveError; |
| 1825 | case lltok::StringConstant: { |
| 1826 | if (parseStringAttribute(B)) |
| 1827 | return true; |
| 1828 | continue; |
| 1829 | } |
| 1830 | case lltok::kw_dereferenceable: { |
| 1831 | uint64_t Bytes; |
| 1832 | if (parseOptionalDerefAttrBytes(lltok::kw_dereferenceable, Bytes)) |
| 1833 | return true; |
| 1834 | B.addDereferenceableAttr(Bytes); |
| 1835 | continue; |
| 1836 | } |
| 1837 | case lltok::kw_dereferenceable_or_null: { |
| 1838 | uint64_t Bytes; |
| 1839 | if (parseOptionalDerefAttrBytes(lltok::kw_dereferenceable_or_null, Bytes)) |
| 1840 | return true; |
| 1841 | B.addDereferenceableOrNullAttr(Bytes); |
| 1842 | continue; |
| 1843 | } |
| 1844 | case lltok::kw_align: { |
| 1845 | MaybeAlign Alignment; |
| 1846 | if (parseOptionalAlignment(Alignment)) |
| 1847 | return true; |
| 1848 | B.addAlignmentAttr(Alignment); |
| 1849 | continue; |
| 1850 | } |
| 1851 | case lltok::kw_inreg: B.addAttribute(Attribute::InReg); break; |
| 1852 | case lltok::kw_noalias: B.addAttribute(Attribute::NoAlias); break; |
| 1853 | case lltok::kw_noundef: |
| 1854 | B.addAttribute(Attribute::NoUndef); |
| 1855 | break; |
| 1856 | case lltok::kw_nonnull: B.addAttribute(Attribute::NonNull); break; |
| 1857 | case lltok::kw_signext: B.addAttribute(Attribute::SExt); break; |
| 1858 | case lltok::kw_zeroext: B.addAttribute(Attribute::ZExt); break; |
| 1859 | |
| 1860 | // error handling. |
| 1861 | case lltok::kw_byval: |
| 1862 | case lltok::kw_inalloca: |
| 1863 | case lltok::kw_nest: |
| 1864 | case lltok::kw_nocapture: |
| 1865 | case lltok::kw_returned: |
| 1866 | case lltok::kw_sret: |
| 1867 | case lltok::kw_swifterror: |
| 1868 | case lltok::kw_swiftself: |
| 1869 | case lltok::kw_immarg: |
| 1870 | case lltok::kw_byref: |
| 1871 | HaveError |= |
| 1872 | error(Lex.getLoc(), "invalid use of parameter-only attribute" ); |
| 1873 | break; |
| 1874 | |
| 1875 | case lltok::kw_alignstack: |
| 1876 | case lltok::kw_alwaysinline: |
| 1877 | case lltok::kw_argmemonly: |
| 1878 | case lltok::kw_builtin: |
| 1879 | case lltok::kw_cold: |
| 1880 | case lltok::kw_inlinehint: |
| 1881 | case lltok::kw_jumptable: |
| 1882 | case lltok::kw_minsize: |
| 1883 | case lltok::kw_mustprogress: |
| 1884 | case lltok::kw_naked: |
| 1885 | case lltok::kw_nobuiltin: |
| 1886 | case lltok::kw_noduplicate: |
| 1887 | case lltok::kw_noimplicitfloat: |
| 1888 | case lltok::kw_noinline: |
| 1889 | case lltok::kw_nonlazybind: |
| 1890 | case lltok::kw_nomerge: |
| 1891 | case lltok::kw_noprofile: |
| 1892 | case lltok::kw_noredzone: |
| 1893 | case lltok::kw_noreturn: |
| 1894 | case lltok::kw_nocf_check: |
| 1895 | case lltok::kw_nounwind: |
| 1896 | case lltok::kw_optforfuzzing: |
| 1897 | case lltok::kw_optnone: |
| 1898 | case lltok::kw_optsize: |
| 1899 | case lltok::kw_returns_twice: |
| 1900 | case lltok::kw_sanitize_address: |
| 1901 | case lltok::kw_sanitize_hwaddress: |
| 1902 | case lltok::kw_sanitize_memtag: |
| 1903 | case lltok::kw_sanitize_memory: |
| 1904 | case lltok::kw_sanitize_thread: |
| 1905 | case lltok::kw_speculative_load_hardening: |
| 1906 | case lltok::kw_ssp: |
| 1907 | case lltok::kw_sspreq: |
| 1908 | case lltok::kw_sspstrong: |
| 1909 | case lltok::kw_safestack: |
| 1910 | case lltok::kw_shadowcallstack: |
| 1911 | case lltok::kw_strictfp: |
| 1912 | case lltok::kw_uwtable: |
| 1913 | HaveError |= |
| 1914 | error(Lex.getLoc(), "invalid use of function-only attribute" ); |
| 1915 | break; |
| 1916 | case lltok::kw_readnone: |
| 1917 | case lltok::kw_readonly: |
| 1918 | HaveError |= |
| 1919 | error(Lex.getLoc(), "invalid use of attribute on return type" ); |
| 1920 | break; |
| 1921 | case lltok::kw_preallocated: |
| 1922 | HaveError |= |
| 1923 | error(Lex.getLoc(), |
| 1924 | "invalid use of parameter-only/call site-only attribute" ); |
| 1925 | break; |
| 1926 | } |
| 1927 | |
| 1928 | Lex.Lex(); |
| 1929 | } |
| 1930 | } |
| 1931 | |
| 1932 | static unsigned parseOptionalLinkageAux(lltok::Kind Kind, bool &HasLinkage) { |
| 1933 | HasLinkage = true; |
| 1934 | switch (Kind) { |
| 1935 | default: |
| 1936 | HasLinkage = false; |
| 1937 | return GlobalValue::ExternalLinkage; |
| 1938 | case lltok::kw_private: |
| 1939 | return GlobalValue::PrivateLinkage; |
| 1940 | case lltok::kw_internal: |
| 1941 | return GlobalValue::InternalLinkage; |
| 1942 | case lltok::kw_weak: |
| 1943 | return GlobalValue::WeakAnyLinkage; |
| 1944 | case lltok::kw_weak_odr: |
| 1945 | return GlobalValue::WeakODRLinkage; |
| 1946 | case lltok::kw_linkonce: |
| 1947 | return GlobalValue::LinkOnceAnyLinkage; |
| 1948 | case lltok::kw_linkonce_odr: |
| 1949 | return GlobalValue::LinkOnceODRLinkage; |
| 1950 | case lltok::kw_available_externally: |
| 1951 | return GlobalValue::AvailableExternallyLinkage; |
| 1952 | case lltok::kw_appending: |
| 1953 | return GlobalValue::AppendingLinkage; |
| 1954 | case lltok::kw_common: |
| 1955 | return GlobalValue::CommonLinkage; |
| 1956 | case lltok::kw_extern_weak: |
| 1957 | return GlobalValue::ExternalWeakLinkage; |
| 1958 | case lltok::kw_external: |
| 1959 | return GlobalValue::ExternalLinkage; |
| 1960 | } |
| 1961 | } |
| 1962 | |
| 1963 | /// parseOptionalLinkage |
| 1964 | /// ::= /*empty*/ |
| 1965 | /// ::= 'private' |
| 1966 | /// ::= 'internal' |
| 1967 | /// ::= 'weak' |
| 1968 | /// ::= 'weak_odr' |
| 1969 | /// ::= 'linkonce' |
| 1970 | /// ::= 'linkonce_odr' |
| 1971 | /// ::= 'available_externally' |
| 1972 | /// ::= 'appending' |
| 1973 | /// ::= 'common' |
| 1974 | /// ::= 'extern_weak' |
| 1975 | /// ::= 'external' |
| 1976 | bool LLParser::parseOptionalLinkage(unsigned &Res, bool &HasLinkage, |
| 1977 | unsigned &Visibility, |
| 1978 | unsigned &DLLStorageClass, bool &DSOLocal) { |
| 1979 | Res = parseOptionalLinkageAux(Lex.getKind(), HasLinkage); |
| 1980 | if (HasLinkage) |
| 1981 | Lex.Lex(); |
| 1982 | parseOptionalDSOLocal(DSOLocal); |
| 1983 | parseOptionalVisibility(Visibility); |
| 1984 | parseOptionalDLLStorageClass(DLLStorageClass); |
| 1985 | |
| 1986 | if (DSOLocal && DLLStorageClass == GlobalValue::DLLImportStorageClass) { |
| 1987 | return error(Lex.getLoc(), "dso_location and DLL-StorageClass mismatch" ); |
| 1988 | } |
| 1989 | |
| 1990 | return false; |
| 1991 | } |
| 1992 | |
| 1993 | void LLParser::parseOptionalDSOLocal(bool &DSOLocal) { |
| 1994 | switch (Lex.getKind()) { |
| 1995 | default: |
| 1996 | DSOLocal = false; |
| 1997 | break; |
| 1998 | case lltok::kw_dso_local: |
| 1999 | DSOLocal = true; |
| 2000 | Lex.Lex(); |
| 2001 | break; |
| 2002 | case lltok::kw_dso_preemptable: |
| 2003 | DSOLocal = false; |
| 2004 | Lex.Lex(); |
| 2005 | break; |
| 2006 | } |
| 2007 | } |
| 2008 | |
| 2009 | /// parseOptionalVisibility |
| 2010 | /// ::= /*empty*/ |
| 2011 | /// ::= 'default' |
| 2012 | /// ::= 'hidden' |
| 2013 | /// ::= 'protected' |
| 2014 | /// |
| 2015 | void LLParser::parseOptionalVisibility(unsigned &Res) { |
| 2016 | switch (Lex.getKind()) { |
| 2017 | default: |
| 2018 | Res = GlobalValue::DefaultVisibility; |
| 2019 | return; |
| 2020 | case lltok::kw_default: |
| 2021 | Res = GlobalValue::DefaultVisibility; |
| 2022 | break; |
| 2023 | case lltok::kw_hidden: |
| 2024 | Res = GlobalValue::HiddenVisibility; |
| 2025 | break; |
| 2026 | case lltok::kw_protected: |
| 2027 | Res = GlobalValue::ProtectedVisibility; |
| 2028 | break; |
| 2029 | } |
| 2030 | Lex.Lex(); |
| 2031 | } |
| 2032 | |
| 2033 | /// parseOptionalDLLStorageClass |
| 2034 | /// ::= /*empty*/ |
| 2035 | /// ::= 'dllimport' |
| 2036 | /// ::= 'dllexport' |
| 2037 | /// |
| 2038 | void LLParser::parseOptionalDLLStorageClass(unsigned &Res) { |
| 2039 | switch (Lex.getKind()) { |
| 2040 | default: |
| 2041 | Res = GlobalValue::DefaultStorageClass; |
| 2042 | return; |
| 2043 | case lltok::kw_dllimport: |
| 2044 | Res = GlobalValue::DLLImportStorageClass; |
| 2045 | break; |
| 2046 | case lltok::kw_dllexport: |
| 2047 | Res = GlobalValue::DLLExportStorageClass; |
| 2048 | break; |
| 2049 | } |
| 2050 | Lex.Lex(); |
| 2051 | } |
| 2052 | |
| 2053 | /// parseOptionalCallingConv |
| 2054 | /// ::= /*empty*/ |
| 2055 | /// ::= 'ccc' |
| 2056 | /// ::= 'fastcc' |
| 2057 | /// ::= 'intel_ocl_bicc' |
| 2058 | /// ::= 'coldcc' |
| 2059 | /// ::= 'cfguard_checkcc' |
| 2060 | /// ::= 'x86_stdcallcc' |
| 2061 | /// ::= 'x86_fastcallcc' |
| 2062 | /// ::= 'x86_thiscallcc' |
| 2063 | /// ::= 'x86_vectorcallcc' |
| 2064 | /// ::= 'arm_apcscc' |
| 2065 | /// ::= 'arm_aapcscc' |
| 2066 | /// ::= 'arm_aapcs_vfpcc' |
| 2067 | /// ::= 'aarch64_vector_pcs' |
| 2068 | /// ::= 'aarch64_sve_vector_pcs' |
| 2069 | /// ::= 'msp430_intrcc' |
| 2070 | /// ::= 'avr_intrcc' |
| 2071 | /// ::= 'avr_signalcc' |
| 2072 | /// ::= 'ptx_kernel' |
| 2073 | /// ::= 'ptx_device' |
| 2074 | /// ::= 'spir_func' |
| 2075 | /// ::= 'spir_kernel' |
| 2076 | /// ::= 'x86_64_sysvcc' |
| 2077 | /// ::= 'win64cc' |
| 2078 | /// ::= 'webkit_jscc' |
| 2079 | /// ::= 'anyregcc' |
| 2080 | /// ::= 'preserve_mostcc' |
| 2081 | /// ::= 'preserve_allcc' |
| 2082 | /// ::= 'ghccc' |
| 2083 | /// ::= 'swiftcc' |
| 2084 | /// ::= 'x86_intrcc' |
| 2085 | /// ::= 'hhvmcc' |
| 2086 | /// ::= 'hhvm_ccc' |
| 2087 | /// ::= 'cxx_fast_tlscc' |
| 2088 | /// ::= 'amdgpu_vs' |
| 2089 | /// ::= 'amdgpu_ls' |
| 2090 | /// ::= 'amdgpu_hs' |
| 2091 | /// ::= 'amdgpu_es' |
| 2092 | /// ::= 'amdgpu_gs' |
| 2093 | /// ::= 'amdgpu_ps' |
| 2094 | /// ::= 'amdgpu_cs' |
| 2095 | /// ::= 'amdgpu_kernel' |
| 2096 | /// ::= 'tailcc' |
| 2097 | /// ::= 'cc' UINT |
| 2098 | /// |
| 2099 | bool LLParser::parseOptionalCallingConv(unsigned &CC) { |
| 2100 | switch (Lex.getKind()) { |
| 2101 | default: CC = CallingConv::C; return false; |
| 2102 | case lltok::kw_ccc: CC = CallingConv::C; break; |
| 2103 | case lltok::kw_fastcc: CC = CallingConv::Fast; break; |
| 2104 | case lltok::kw_coldcc: CC = CallingConv::Cold; break; |
| 2105 | case lltok::kw_cfguard_checkcc: CC = CallingConv::CFGuard_Check; break; |
| 2106 | case lltok::kw_x86_stdcallcc: CC = CallingConv::X86_StdCall; break; |
| 2107 | case lltok::kw_x86_fastcallcc: CC = CallingConv::X86_FastCall; break; |
| 2108 | case lltok::kw_x86_regcallcc: CC = CallingConv::X86_RegCall; break; |
| 2109 | case lltok::kw_x86_thiscallcc: CC = CallingConv::X86_ThisCall; break; |
| 2110 | case lltok::kw_x86_vectorcallcc:CC = CallingConv::X86_VectorCall; break; |
| 2111 | case lltok::kw_arm_apcscc: CC = CallingConv::ARM_APCS; break; |
| 2112 | case lltok::kw_arm_aapcscc: CC = CallingConv::ARM_AAPCS; break; |
| 2113 | case lltok::kw_arm_aapcs_vfpcc:CC = CallingConv::ARM_AAPCS_VFP; break; |
| 2114 | case lltok::kw_aarch64_vector_pcs:CC = CallingConv::AArch64_VectorCall; break; |
| 2115 | case lltok::kw_aarch64_sve_vector_pcs: |
| 2116 | CC = CallingConv::AArch64_SVE_VectorCall; |
| 2117 | break; |
| 2118 | case lltok::kw_msp430_intrcc: CC = CallingConv::MSP430_INTR; break; |
| 2119 | case lltok::kw_avr_intrcc: CC = CallingConv::AVR_INTR; break; |
| 2120 | case lltok::kw_avr_signalcc: CC = CallingConv::AVR_SIGNAL; break; |
| 2121 | case lltok::kw_ptx_kernel: CC = CallingConv::PTX_Kernel; break; |
| 2122 | case lltok::kw_ptx_device: CC = CallingConv::PTX_Device; break; |
| 2123 | case lltok::kw_spir_kernel: CC = CallingConv::SPIR_KERNEL; break; |
| 2124 | case lltok::kw_spir_func: CC = CallingConv::SPIR_FUNC; break; |
| 2125 | case lltok::kw_intel_ocl_bicc: CC = CallingConv::Intel_OCL_BI; break; |
| 2126 | case lltok::kw_x86_64_sysvcc: CC = CallingConv::X86_64_SysV; break; |
| 2127 | case lltok::kw_win64cc: CC = CallingConv::Win64; break; |
| 2128 | case lltok::kw_webkit_jscc: CC = CallingConv::WebKit_JS; break; |
| 2129 | case lltok::kw_anyregcc: CC = CallingConv::AnyReg; break; |
| 2130 | case lltok::kw_preserve_mostcc:CC = CallingConv::PreserveMost; break; |
| 2131 | case lltok::kw_preserve_allcc: CC = CallingConv::PreserveAll; break; |
| 2132 | case lltok::kw_ghccc: CC = CallingConv::GHC; break; |
| 2133 | case lltok::kw_swiftcc: CC = CallingConv::Swift; break; |
| 2134 | case lltok::kw_x86_intrcc: CC = CallingConv::X86_INTR; break; |
| 2135 | case lltok::kw_hhvmcc: CC = CallingConv::HHVM; break; |
| 2136 | case lltok::kw_hhvm_ccc: CC = CallingConv::HHVM_C; break; |
| 2137 | case lltok::kw_cxx_fast_tlscc: CC = CallingConv::CXX_FAST_TLS; break; |
| 2138 | case lltok::kw_amdgpu_vs: CC = CallingConv::AMDGPU_VS; break; |
| 2139 | case lltok::kw_amdgpu_gfx: CC = CallingConv::AMDGPU_Gfx; break; |
| 2140 | case lltok::kw_amdgpu_ls: CC = CallingConv::AMDGPU_LS; break; |
| 2141 | case lltok::kw_amdgpu_hs: CC = CallingConv::AMDGPU_HS; break; |
| 2142 | case lltok::kw_amdgpu_es: CC = CallingConv::AMDGPU_ES; break; |
| 2143 | case lltok::kw_amdgpu_gs: CC = CallingConv::AMDGPU_GS; break; |
| 2144 | case lltok::kw_amdgpu_ps: CC = CallingConv::AMDGPU_PS; break; |
| 2145 | case lltok::kw_amdgpu_cs: CC = CallingConv::AMDGPU_CS; break; |
| 2146 | case lltok::kw_amdgpu_kernel: CC = CallingConv::AMDGPU_KERNEL; break; |
| 2147 | case lltok::kw_tailcc: CC = CallingConv::Tail; break; |
| 2148 | case lltok::kw_cc: { |
| 2149 | Lex.Lex(); |
| 2150 | return parseUInt32(CC); |
| 2151 | } |
| 2152 | } |
| 2153 | |
| 2154 | Lex.Lex(); |
| 2155 | return false; |
| 2156 | } |
| 2157 | |
| 2158 | /// parseMetadataAttachment |
| 2159 | /// ::= !dbg !42 |
| 2160 | bool LLParser::parseMetadataAttachment(unsigned &Kind, MDNode *&MD) { |
| 2161 | assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata attachment" ); |
| 2162 | |
| 2163 | std::string Name = Lex.getStrVal(); |
| 2164 | Kind = M->getMDKindID(Name); |
| 2165 | Lex.Lex(); |
| 2166 | |
| 2167 | return parseMDNode(MD); |
| 2168 | } |
| 2169 | |
| 2170 | /// parseInstructionMetadata |
| 2171 | /// ::= !dbg !42 (',' !dbg !57)* |
| 2172 | bool LLParser::parseInstructionMetadata(Instruction &Inst) { |
| 2173 | do { |
| 2174 | if (Lex.getKind() != lltok::MetadataVar) |
| 2175 | return tokError("expected metadata after comma" ); |
| 2176 | |
| 2177 | unsigned MDK; |
| 2178 | MDNode *N; |
| 2179 | if (parseMetadataAttachment(MDK, N)) |
| 2180 | return true; |
| 2181 | |
| 2182 | Inst.setMetadata(MDK, N); |
| 2183 | if (MDK == LLVMContext::MD_tbaa) |
| 2184 | InstsWithTBAATag.push_back(&Inst); |
| 2185 | |
| 2186 | // If this is the end of the list, we're done. |
| 2187 | } while (EatIfPresent(lltok::comma)); |
| 2188 | return false; |
| 2189 | } |
| 2190 | |
| 2191 | /// parseGlobalObjectMetadataAttachment |
| 2192 | /// ::= !dbg !57 |
| 2193 | bool LLParser::parseGlobalObjectMetadataAttachment(GlobalObject &GO) { |
| 2194 | unsigned MDK; |
| 2195 | MDNode *N; |
| 2196 | if (parseMetadataAttachment(MDK, N)) |
| 2197 | return true; |
| 2198 | |
| 2199 | GO.addMetadata(MDK, *N); |
| 2200 | return false; |
| 2201 | } |
| 2202 | |
| 2203 | /// parseOptionalFunctionMetadata |
| 2204 | /// ::= (!dbg !57)* |
| 2205 | bool LLParser::parseOptionalFunctionMetadata(Function &F) { |
| 2206 | while (Lex.getKind() == lltok::MetadataVar) |
| 2207 | if (parseGlobalObjectMetadataAttachment(F)) |
| 2208 | return true; |
| 2209 | return false; |
| 2210 | } |
| 2211 | |
| 2212 | /// parseOptionalAlignment |
| 2213 | /// ::= /* empty */ |
| 2214 | /// ::= 'align' 4 |
| 2215 | bool LLParser::parseOptionalAlignment(MaybeAlign &Alignment, bool AllowParens) { |
| 2216 | Alignment = None; |
| 2217 | if (!EatIfPresent(lltok::kw_align)) |
| 2218 | return false; |
| 2219 | LocTy AlignLoc = Lex.getLoc(); |
| 2220 | uint32_t Value = 0; |
| 2221 | |
| 2222 | LocTy ParenLoc = Lex.getLoc(); |
| 2223 | bool HaveParens = false; |
| 2224 | if (AllowParens) { |
| 2225 | if (EatIfPresent(lltok::lparen)) |
| 2226 | HaveParens = true; |
| 2227 | } |
| 2228 | |
| 2229 | if (parseUInt32(Value)) |
| 2230 | return true; |
| 2231 | |
| 2232 | if (HaveParens && !EatIfPresent(lltok::rparen)) |
| 2233 | return error(ParenLoc, "expected ')'" ); |
| 2234 | |
| 2235 | if (!isPowerOf2_32(Value)) |
| 2236 | return error(AlignLoc, "alignment is not a power of two" ); |
| 2237 | if (Value > Value::MaximumAlignment) |
| 2238 | return error(AlignLoc, "huge alignments are not supported yet" ); |
| 2239 | Alignment = Align(Value); |
| 2240 | return false; |
| 2241 | } |
| 2242 | |
| 2243 | /// parseOptionalDerefAttrBytes |
| 2244 | /// ::= /* empty */ |
| 2245 | /// ::= AttrKind '(' 4 ')' |
| 2246 | /// |
| 2247 | /// where AttrKind is either 'dereferenceable' or 'dereferenceable_or_null'. |
| 2248 | bool LLParser::parseOptionalDerefAttrBytes(lltok::Kind AttrKind, |
| 2249 | uint64_t &Bytes) { |
| 2250 | assert((AttrKind == lltok::kw_dereferenceable || |
| 2251 | AttrKind == lltok::kw_dereferenceable_or_null) && |
| 2252 | "contract!" ); |
| 2253 | |
| 2254 | Bytes = 0; |
| 2255 | if (!EatIfPresent(AttrKind)) |
| 2256 | return false; |
| 2257 | LocTy ParenLoc = Lex.getLoc(); |
| 2258 | if (!EatIfPresent(lltok::lparen)) |
| 2259 | return error(ParenLoc, "expected '('" ); |
| 2260 | LocTy DerefLoc = Lex.getLoc(); |
| 2261 | if (parseUInt64(Bytes)) |
| 2262 | return true; |
| 2263 | ParenLoc = Lex.getLoc(); |
| 2264 | if (!EatIfPresent(lltok::rparen)) |
| 2265 | return error(ParenLoc, "expected ')'" ); |
| 2266 | if (!Bytes) |
| 2267 | return error(DerefLoc, "dereferenceable bytes must be non-zero" ); |
| 2268 | return false; |
| 2269 | } |
| 2270 | |
| 2271 | /// parseOptionalCommaAlign |
| 2272 | /// ::= |
| 2273 | /// ::= ',' align 4 |
| 2274 | /// |
| 2275 | /// This returns with AteExtraComma set to true if it ate an excess comma at the |
| 2276 | /// end. |
| 2277 | bool LLParser::parseOptionalCommaAlign(MaybeAlign &Alignment, |
| 2278 | bool &) { |
| 2279 | AteExtraComma = false; |
| 2280 | while (EatIfPresent(lltok::comma)) { |
| 2281 | // Metadata at the end is an early exit. |
| 2282 | if (Lex.getKind() == lltok::MetadataVar) { |
| 2283 | AteExtraComma = true; |
| 2284 | return false; |
| 2285 | } |
| 2286 | |
| 2287 | if (Lex.getKind() != lltok::kw_align) |
| 2288 | return error(Lex.getLoc(), "expected metadata or 'align'" ); |
| 2289 | |
| 2290 | if (parseOptionalAlignment(Alignment)) |
| 2291 | return true; |
| 2292 | } |
| 2293 | |
| 2294 | return false; |
| 2295 | } |
| 2296 | |
| 2297 | /// parseOptionalCommaAddrSpace |
| 2298 | /// ::= |
| 2299 | /// ::= ',' addrspace(1) |
| 2300 | /// |
| 2301 | /// This returns with AteExtraComma set to true if it ate an excess comma at the |
| 2302 | /// end. |
| 2303 | bool LLParser::parseOptionalCommaAddrSpace(unsigned &AddrSpace, LocTy &Loc, |
| 2304 | bool &) { |
| 2305 | AteExtraComma = false; |
| 2306 | while (EatIfPresent(lltok::comma)) { |
| 2307 | // Metadata at the end is an early exit. |
| 2308 | if (Lex.getKind() == lltok::MetadataVar) { |
| 2309 | AteExtraComma = true; |
| 2310 | return false; |
| 2311 | } |
| 2312 | |
| 2313 | Loc = Lex.getLoc(); |
| 2314 | if (Lex.getKind() != lltok::kw_addrspace) |
| 2315 | return error(Lex.getLoc(), "expected metadata or 'addrspace'" ); |
| 2316 | |
| 2317 | if (parseOptionalAddrSpace(AddrSpace)) |
| 2318 | return true; |
| 2319 | } |
| 2320 | |
| 2321 | return false; |
| 2322 | } |
| 2323 | |
| 2324 | bool LLParser::parseAllocSizeArguments(unsigned &BaseSizeArg, |
| 2325 | Optional<unsigned> &HowManyArg) { |
| 2326 | Lex.Lex(); |
| 2327 | |
| 2328 | auto StartParen = Lex.getLoc(); |
| 2329 | if (!EatIfPresent(lltok::lparen)) |
| 2330 | return error(StartParen, "expected '('" ); |
| 2331 | |
| 2332 | if (parseUInt32(BaseSizeArg)) |
| 2333 | return true; |
| 2334 | |
| 2335 | if (EatIfPresent(lltok::comma)) { |
| 2336 | auto HowManyAt = Lex.getLoc(); |
| 2337 | unsigned HowMany; |
| 2338 | if (parseUInt32(HowMany)) |
| 2339 | return true; |
| 2340 | if (HowMany == BaseSizeArg) |
| 2341 | return error(HowManyAt, |
| 2342 | "'allocsize' indices can't refer to the same parameter" ); |
| 2343 | HowManyArg = HowMany; |
| 2344 | } else |
| 2345 | HowManyArg = None; |
| 2346 | |
| 2347 | auto EndParen = Lex.getLoc(); |
| 2348 | if (!EatIfPresent(lltok::rparen)) |
| 2349 | return error(EndParen, "expected ')'" ); |
| 2350 | return false; |
| 2351 | } |
| 2352 | |
| 2353 | /// parseScopeAndOrdering |
| 2354 | /// if isAtomic: ::= SyncScope? AtomicOrdering |
| 2355 | /// else: ::= |
| 2356 | /// |
| 2357 | /// This sets Scope and Ordering to the parsed values. |
| 2358 | bool LLParser::parseScopeAndOrdering(bool IsAtomic, SyncScope::ID &SSID, |
| 2359 | AtomicOrdering &Ordering) { |
| 2360 | if (!IsAtomic) |
| 2361 | return false; |
| 2362 | |
| 2363 | return parseScope(SSID) || parseOrdering(Ordering); |
| 2364 | } |
| 2365 | |
| 2366 | /// parseScope |
| 2367 | /// ::= syncscope("singlethread" | "<target scope>")? |
| 2368 | /// |
| 2369 | /// This sets synchronization scope ID to the ID of the parsed value. |
| 2370 | bool LLParser::parseScope(SyncScope::ID &SSID) { |
| 2371 | SSID = SyncScope::System; |
| 2372 | if (EatIfPresent(lltok::kw_syncscope)) { |
| 2373 | auto StartParenAt = Lex.getLoc(); |
| 2374 | if (!EatIfPresent(lltok::lparen)) |
| 2375 | return error(StartParenAt, "Expected '(' in syncscope" ); |
| 2376 | |
| 2377 | std::string SSN; |
| 2378 | auto SSNAt = Lex.getLoc(); |
| 2379 | if (parseStringConstant(SSN)) |
| 2380 | return error(SSNAt, "Expected synchronization scope name" ); |
| 2381 | |
| 2382 | auto EndParenAt = Lex.getLoc(); |
| 2383 | if (!EatIfPresent(lltok::rparen)) |
| 2384 | return error(EndParenAt, "Expected ')' in syncscope" ); |
| 2385 | |
| 2386 | SSID = Context.getOrInsertSyncScopeID(SSN); |
| 2387 | } |
| 2388 | |
| 2389 | return false; |
| 2390 | } |
| 2391 | |
| 2392 | /// parseOrdering |
| 2393 | /// ::= AtomicOrdering |
| 2394 | /// |
| 2395 | /// This sets Ordering to the parsed value. |
| 2396 | bool LLParser::parseOrdering(AtomicOrdering &Ordering) { |
| 2397 | switch (Lex.getKind()) { |
| 2398 | default: |
| 2399 | return tokError("Expected ordering on atomic instruction" ); |
| 2400 | case lltok::kw_unordered: Ordering = AtomicOrdering::Unordered; break; |
| 2401 | case lltok::kw_monotonic: Ordering = AtomicOrdering::Monotonic; break; |
| 2402 | // Not specified yet: |
| 2403 | // case lltok::kw_consume: Ordering = AtomicOrdering::Consume; break; |
| 2404 | case lltok::kw_acquire: Ordering = AtomicOrdering::Acquire; break; |
| 2405 | case lltok::kw_release: Ordering = AtomicOrdering::Release; break; |
| 2406 | case lltok::kw_acq_rel: Ordering = AtomicOrdering::AcquireRelease; break; |
| 2407 | case lltok::kw_seq_cst: |
| 2408 | Ordering = AtomicOrdering::SequentiallyConsistent; |
| 2409 | break; |
| 2410 | } |
| 2411 | Lex.Lex(); |
| 2412 | return false; |
| 2413 | } |
| 2414 | |
| 2415 | /// parseOptionalStackAlignment |
| 2416 | /// ::= /* empty */ |
| 2417 | /// ::= 'alignstack' '(' 4 ')' |
| 2418 | bool LLParser::parseOptionalStackAlignment(unsigned &Alignment) { |
| 2419 | Alignment = 0; |
| 2420 | if (!EatIfPresent(lltok::kw_alignstack)) |
| 2421 | return false; |
| 2422 | LocTy ParenLoc = Lex.getLoc(); |
| 2423 | if (!EatIfPresent(lltok::lparen)) |
| 2424 | return error(ParenLoc, "expected '('" ); |
| 2425 | LocTy AlignLoc = Lex.getLoc(); |
| 2426 | if (parseUInt32(Alignment)) |
| 2427 | return true; |
| 2428 | ParenLoc = Lex.getLoc(); |
| 2429 | if (!EatIfPresent(lltok::rparen)) |
| 2430 | return error(ParenLoc, "expected ')'" ); |
| 2431 | if (!isPowerOf2_32(Alignment)) |
| 2432 | return error(AlignLoc, "stack alignment is not a power of two" ); |
| 2433 | return false; |
| 2434 | } |
| 2435 | |
| 2436 | /// parseIndexList - This parses the index list for an insert/extractvalue |
| 2437 | /// instruction. This sets AteExtraComma in the case where we eat an extra |
| 2438 | /// comma at the end of the line and find that it is followed by metadata. |
| 2439 | /// Clients that don't allow metadata can call the version of this function that |
| 2440 | /// only takes one argument. |
| 2441 | /// |
| 2442 | /// parseIndexList |
| 2443 | /// ::= (',' uint32)+ |
| 2444 | /// |
| 2445 | bool LLParser::parseIndexList(SmallVectorImpl<unsigned> &Indices, |
| 2446 | bool &) { |
| 2447 | AteExtraComma = false; |
| 2448 | |
| 2449 | if (Lex.getKind() != lltok::comma) |
| 2450 | return tokError("expected ',' as start of index list" ); |
| 2451 | |
| 2452 | while (EatIfPresent(lltok::comma)) { |
| 2453 | if (Lex.getKind() == lltok::MetadataVar) { |
| 2454 | if (Indices.empty()) |
| 2455 | return tokError("expected index" ); |
| 2456 | AteExtraComma = true; |
| 2457 | return false; |
| 2458 | } |
| 2459 | unsigned Idx = 0; |
| 2460 | if (parseUInt32(Idx)) |
| 2461 | return true; |
| 2462 | Indices.push_back(Idx); |
| 2463 | } |
| 2464 | |
| 2465 | return false; |
| 2466 | } |
| 2467 | |
| 2468 | //===----------------------------------------------------------------------===// |
| 2469 | // Type Parsing. |
| 2470 | //===----------------------------------------------------------------------===// |
| 2471 | |
| 2472 | /// parseType - parse a type. |
| 2473 | bool LLParser::parseType(Type *&Result, const Twine &Msg, bool AllowVoid) { |
| 2474 | SMLoc TypeLoc = Lex.getLoc(); |
| 2475 | switch (Lex.getKind()) { |
| 2476 | default: |
| 2477 | return tokError(Msg); |
| 2478 | case lltok::Type: |
| 2479 | // Type ::= 'float' | 'void' (etc) |
| 2480 | Result = Lex.getTyVal(); |
| 2481 | Lex.Lex(); |
| 2482 | break; |
| 2483 | case lltok::lbrace: |
| 2484 | // Type ::= StructType |
| 2485 | if (parseAnonStructType(Result, false)) |
| 2486 | return true; |
| 2487 | break; |
| 2488 | case lltok::lsquare: |
| 2489 | // Type ::= '[' ... ']' |
| 2490 | Lex.Lex(); // eat the lsquare. |
| 2491 | if (parseArrayVectorType(Result, false)) |
| 2492 | return true; |
| 2493 | break; |
| 2494 | case lltok::less: // Either vector or packed struct. |
| 2495 | // Type ::= '<' ... '>' |
| 2496 | Lex.Lex(); |
| 2497 | if (Lex.getKind() == lltok::lbrace) { |
| 2498 | if (parseAnonStructType(Result, true) || |
| 2499 | parseToken(lltok::greater, "expected '>' at end of packed struct" )) |
| 2500 | return true; |
| 2501 | } else if (parseArrayVectorType(Result, true)) |
| 2502 | return true; |
| 2503 | break; |
| 2504 | case lltok::LocalVar: { |
| 2505 | // Type ::= %foo |
| 2506 | std::pair<Type*, LocTy> &Entry = NamedTypes[Lex.getStrVal()]; |
| 2507 | |
| 2508 | // If the type hasn't been defined yet, create a forward definition and |
| 2509 | // remember where that forward def'n was seen (in case it never is defined). |
| 2510 | if (!Entry.first) { |
| 2511 | Entry.first = StructType::create(Context, Lex.getStrVal()); |
| 2512 | Entry.second = Lex.getLoc(); |
| 2513 | } |
| 2514 | Result = Entry.first; |
| 2515 | Lex.Lex(); |
| 2516 | break; |
| 2517 | } |
| 2518 | |
| 2519 | case lltok::LocalVarID: { |
| 2520 | // Type ::= %4 |
| 2521 | std::pair<Type*, LocTy> &Entry = NumberedTypes[Lex.getUIntVal()]; |
| 2522 | |
| 2523 | // If the type hasn't been defined yet, create a forward definition and |
| 2524 | // remember where that forward def'n was seen (in case it never is defined). |
| 2525 | if (!Entry.first) { |
| 2526 | Entry.first = StructType::create(Context); |
| 2527 | Entry.second = Lex.getLoc(); |
| 2528 | } |
| 2529 | Result = Entry.first; |
| 2530 | Lex.Lex(); |
| 2531 | break; |
| 2532 | } |
| 2533 | } |
| 2534 | |
| 2535 | // parse the type suffixes. |
| 2536 | while (true) { |
| 2537 | switch (Lex.getKind()) { |
| 2538 | // End of type. |
| 2539 | default: |
| 2540 | if (!AllowVoid && Result->isVoidTy()) |
| 2541 | return error(TypeLoc, "void type only allowed for function results" ); |
| 2542 | return false; |
| 2543 | |
| 2544 | // Type ::= Type '*' |
| 2545 | case lltok::star: |
| 2546 | if (Result->isLabelTy()) |
| 2547 | return tokError("basic block pointers are invalid" ); |
| 2548 | if (Result->isVoidTy()) |
| 2549 | return tokError("pointers to void are invalid - use i8* instead" ); |
| 2550 | if (!PointerType::isValidElementType(Result)) |
| 2551 | return tokError("pointer to this type is invalid" ); |
| 2552 | Result = PointerType::getUnqual(Result); |
| 2553 | Lex.Lex(); |
| 2554 | break; |
| 2555 | |
| 2556 | // Type ::= Type 'addrspace' '(' uint32 ')' '*' |
| 2557 | case lltok::kw_addrspace: { |
| 2558 | if (Result->isLabelTy()) |
| 2559 | return tokError("basic block pointers are invalid" ); |
| 2560 | if (Result->isVoidTy()) |
| 2561 | return tokError("pointers to void are invalid; use i8* instead" ); |
| 2562 | if (!PointerType::isValidElementType(Result)) |
| 2563 | return tokError("pointer to this type is invalid" ); |
| 2564 | unsigned AddrSpace; |
| 2565 | if (parseOptionalAddrSpace(AddrSpace) || |
| 2566 | parseToken(lltok::star, "expected '*' in address space" )) |
| 2567 | return true; |
| 2568 | |
| 2569 | Result = PointerType::get(Result, AddrSpace); |
| 2570 | break; |
| 2571 | } |
| 2572 | |
| 2573 | /// Types '(' ArgTypeListI ')' OptFuncAttrs |
| 2574 | case lltok::lparen: |
| 2575 | if (parseFunctionType(Result)) |
| 2576 | return true; |
| 2577 | break; |
| 2578 | } |
| 2579 | } |
| 2580 | } |
| 2581 | |
| 2582 | /// parseParameterList |
| 2583 | /// ::= '(' ')' |
| 2584 | /// ::= '(' Arg (',' Arg)* ')' |
| 2585 | /// Arg |
| 2586 | /// ::= Type OptionalAttributes Value OptionalAttributes |
| 2587 | bool LLParser::parseParameterList(SmallVectorImpl<ParamInfo> &ArgList, |
| 2588 | PerFunctionState &PFS, bool IsMustTailCall, |
| 2589 | bool InVarArgsFunc) { |
| 2590 | if (parseToken(lltok::lparen, "expected '(' in call" )) |
| 2591 | return true; |
| 2592 | |
| 2593 | while (Lex.getKind() != lltok::rparen) { |
| 2594 | // If this isn't the first argument, we need a comma. |
| 2595 | if (!ArgList.empty() && |
| 2596 | parseToken(lltok::comma, "expected ',' in argument list" )) |
| 2597 | return true; |
| 2598 | |
| 2599 | // parse an ellipsis if this is a musttail call in a variadic function. |
| 2600 | if (Lex.getKind() == lltok::dotdotdot) { |
| 2601 | const char *Msg = "unexpected ellipsis in argument list for " ; |
| 2602 | if (!IsMustTailCall) |
| 2603 | return tokError(Twine(Msg) + "non-musttail call" ); |
| 2604 | if (!InVarArgsFunc) |
| 2605 | return tokError(Twine(Msg) + "musttail call in non-varargs function" ); |
| 2606 | Lex.Lex(); // Lex the '...', it is purely for readability. |
| 2607 | return parseToken(lltok::rparen, "expected ')' at end of argument list" ); |
| 2608 | } |
| 2609 | |
| 2610 | // parse the argument. |
| 2611 | LocTy ArgLoc; |
| 2612 | Type *ArgTy = nullptr; |
| 2613 | AttrBuilder ArgAttrs; |
| 2614 | Value *V; |
| 2615 | if (parseType(ArgTy, ArgLoc)) |
| 2616 | return true; |
| 2617 | |
| 2618 | if (ArgTy->isMetadataTy()) { |
| 2619 | if (parseMetadataAsValue(V, PFS)) |
| 2620 | return true; |
| 2621 | } else { |
| 2622 | // Otherwise, handle normal operands. |
| 2623 | if (parseOptionalParamAttrs(ArgAttrs) || parseValue(ArgTy, V, PFS)) |
| 2624 | return true; |
| 2625 | } |
| 2626 | ArgList.push_back(ParamInfo( |
| 2627 | ArgLoc, V, AttributeSet::get(V->getContext(), ArgAttrs))); |
| 2628 | } |
| 2629 | |
| 2630 | if (IsMustTailCall && InVarArgsFunc) |
| 2631 | return tokError("expected '...' at end of argument list for musttail call " |
| 2632 | "in varargs function" ); |
| 2633 | |
| 2634 | Lex.Lex(); // Lex the ')'. |
| 2635 | return false; |
| 2636 | } |
| 2637 | |
| 2638 | /// parseRequiredTypeAttr |
| 2639 | /// ::= attrname(<ty>) |
| 2640 | bool LLParser::parseRequiredTypeAttr(Type *&Result, lltok::Kind AttrName) { |
| 2641 | Result = nullptr; |
| 2642 | if (!EatIfPresent(AttrName)) |
| 2643 | return true; |
| 2644 | if (!EatIfPresent(lltok::lparen)) |
| 2645 | return error(Lex.getLoc(), "expected '('" ); |
| 2646 | if (parseType(Result)) |
| 2647 | return true; |
| 2648 | if (!EatIfPresent(lltok::rparen)) |
| 2649 | return error(Lex.getLoc(), "expected ')'" ); |
| 2650 | return false; |
| 2651 | } |
| 2652 | |
| 2653 | /// parsePreallocated |
| 2654 | /// ::= preallocated(<ty>) |
| 2655 | bool LLParser::parsePreallocated(Type *&Result) { |
| 2656 | return parseRequiredTypeAttr(Result, lltok::kw_preallocated); |
| 2657 | } |
| 2658 | |
| 2659 | /// parseByRef |
| 2660 | /// ::= byref(<type>) |
| 2661 | bool LLParser::parseByRef(Type *&Result) { |
| 2662 | return parseRequiredTypeAttr(Result, lltok::kw_byref); |
| 2663 | } |
| 2664 | |
| 2665 | /// parseOptionalOperandBundles |
| 2666 | /// ::= /*empty*/ |
| 2667 | /// ::= '[' OperandBundle [, OperandBundle ]* ']' |
| 2668 | /// |
| 2669 | /// OperandBundle |
| 2670 | /// ::= bundle-tag '(' ')' |
| 2671 | /// ::= bundle-tag '(' Type Value [, Type Value ]* ')' |
| 2672 | /// |
| 2673 | /// bundle-tag ::= String Constant |
| 2674 | bool LLParser::parseOptionalOperandBundles( |
| 2675 | SmallVectorImpl<OperandBundleDef> &BundleList, PerFunctionState &PFS) { |
| 2676 | LocTy BeginLoc = Lex.getLoc(); |
| 2677 | if (!EatIfPresent(lltok::lsquare)) |
| 2678 | return false; |
| 2679 | |
| 2680 | while (Lex.getKind() != lltok::rsquare) { |
| 2681 | // If this isn't the first operand bundle, we need a comma. |
| 2682 | if (!BundleList.empty() && |
| 2683 | parseToken(lltok::comma, "expected ',' in input list" )) |
| 2684 | return true; |
| 2685 | |
| 2686 | std::string Tag; |
| 2687 | if (parseStringConstant(Tag)) |
| 2688 | return true; |
| 2689 | |
| 2690 | if (parseToken(lltok::lparen, "expected '(' in operand bundle" )) |
| 2691 | return true; |
| 2692 | |
| 2693 | std::vector<Value *> Inputs; |
| 2694 | while (Lex.getKind() != lltok::rparen) { |
| 2695 | // If this isn't the first input, we need a comma. |
| 2696 | if (!Inputs.empty() && |
| 2697 | parseToken(lltok::comma, "expected ',' in input list" )) |
| 2698 | return true; |
| 2699 | |
| 2700 | Type *Ty = nullptr; |
| 2701 | Value *Input = nullptr; |
| 2702 | if (parseType(Ty) || parseValue(Ty, Input, PFS)) |
| 2703 | return true; |
| 2704 | Inputs.push_back(Input); |
| 2705 | } |
| 2706 | |
| 2707 | BundleList.emplace_back(std::move(Tag), std::move(Inputs)); |
| 2708 | |
| 2709 | Lex.Lex(); // Lex the ')'. |
| 2710 | } |
| 2711 | |
| 2712 | if (BundleList.empty()) |
| 2713 | return error(BeginLoc, "operand bundle set must not be empty" ); |
| 2714 | |
| 2715 | Lex.Lex(); // Lex the ']'. |
| 2716 | return false; |
| 2717 | } |
| 2718 | |
| 2719 | /// parseArgumentList - parse the argument list for a function type or function |
| 2720 | /// prototype. |
| 2721 | /// ::= '(' ArgTypeListI ')' |
| 2722 | /// ArgTypeListI |
| 2723 | /// ::= /*empty*/ |
| 2724 | /// ::= '...' |
| 2725 | /// ::= ArgTypeList ',' '...' |
| 2726 | /// ::= ArgType (',' ArgType)* |
| 2727 | /// |
| 2728 | bool LLParser::parseArgumentList(SmallVectorImpl<ArgInfo> &ArgList, |
| 2729 | bool &IsVarArg) { |
| 2730 | unsigned CurValID = 0; |
| 2731 | IsVarArg = false; |
| 2732 | assert(Lex.getKind() == lltok::lparen); |
| 2733 | Lex.Lex(); // eat the (. |
| 2734 | |
| 2735 | if (Lex.getKind() == lltok::rparen) { |
| 2736 | // empty |
| 2737 | } else if (Lex.getKind() == lltok::dotdotdot) { |
| 2738 | IsVarArg = true; |
| 2739 | Lex.Lex(); |
| 2740 | } else { |
| 2741 | LocTy TypeLoc = Lex.getLoc(); |
| 2742 | Type *ArgTy = nullptr; |
| 2743 | AttrBuilder Attrs; |
| 2744 | std::string Name; |
| 2745 | |
| 2746 | if (parseType(ArgTy) || parseOptionalParamAttrs(Attrs)) |
| 2747 | return true; |
| 2748 | |
| 2749 | if (ArgTy->isVoidTy()) |
| 2750 | return error(TypeLoc, "argument can not have void type" ); |
| 2751 | |
| 2752 | if (Lex.getKind() == lltok::LocalVar) { |
| 2753 | Name = Lex.getStrVal(); |
| 2754 | Lex.Lex(); |
| 2755 | } else if (Lex.getKind() == lltok::LocalVarID) { |
| 2756 | if (Lex.getUIntVal() != CurValID) |
| 2757 | return error(TypeLoc, "argument expected to be numbered '%" + |
| 2758 | Twine(CurValID) + "'" ); |
| 2759 | ++CurValID; |
| 2760 | Lex.Lex(); |
| 2761 | } |
| 2762 | |
| 2763 | if (!FunctionType::isValidArgumentType(ArgTy)) |
| 2764 | return error(TypeLoc, "invalid type for function argument" ); |
| 2765 | |
| 2766 | ArgList.emplace_back(TypeLoc, ArgTy, |
| 2767 | AttributeSet::get(ArgTy->getContext(), Attrs), |
| 2768 | std::move(Name)); |
| 2769 | |
| 2770 | while (EatIfPresent(lltok::comma)) { |
| 2771 | // Handle ... at end of arg list. |
| 2772 | if (EatIfPresent(lltok::dotdotdot)) { |
| 2773 | IsVarArg = true; |
| 2774 | break; |
| 2775 | } |
| 2776 | |
| 2777 | // Otherwise must be an argument type. |
| 2778 | TypeLoc = Lex.getLoc(); |
| 2779 | if (parseType(ArgTy) || parseOptionalParamAttrs(Attrs)) |
| 2780 | return true; |
| 2781 | |
| 2782 | if (ArgTy->isVoidTy()) |
| 2783 | return error(TypeLoc, "argument can not have void type" ); |
| 2784 | |
| 2785 | if (Lex.getKind() == lltok::LocalVar) { |
| 2786 | Name = Lex.getStrVal(); |
| 2787 | Lex.Lex(); |
| 2788 | } else { |
| 2789 | if (Lex.getKind() == lltok::LocalVarID) { |
| 2790 | if (Lex.getUIntVal() != CurValID) |
| 2791 | return error(TypeLoc, "argument expected to be numbered '%" + |
| 2792 | Twine(CurValID) + "'" ); |
| 2793 | Lex.Lex(); |
| 2794 | } |
| 2795 | ++CurValID; |
| 2796 | Name = "" ; |
| 2797 | } |
| 2798 | |
| 2799 | if (!ArgTy->isFirstClassType()) |
| 2800 | return error(TypeLoc, "invalid type for function argument" ); |
| 2801 | |
| 2802 | ArgList.emplace_back(TypeLoc, ArgTy, |
| 2803 | AttributeSet::get(ArgTy->getContext(), Attrs), |
| 2804 | std::move(Name)); |
| 2805 | } |
| 2806 | } |
| 2807 | |
| 2808 | return parseToken(lltok::rparen, "expected ')' at end of argument list" ); |
| 2809 | } |
| 2810 | |
| 2811 | /// parseFunctionType |
| 2812 | /// ::= Type ArgumentList OptionalAttrs |
| 2813 | bool LLParser::parseFunctionType(Type *&Result) { |
| 2814 | assert(Lex.getKind() == lltok::lparen); |
| 2815 | |
| 2816 | if (!FunctionType::isValidReturnType(Result)) |
| 2817 | return tokError("invalid function return type" ); |
| 2818 | |
| 2819 | SmallVector<ArgInfo, 8> ArgList; |
| 2820 | bool IsVarArg; |
| 2821 | if (parseArgumentList(ArgList, IsVarArg)) |
| 2822 | return true; |
| 2823 | |
| 2824 | // Reject names on the arguments lists. |
| 2825 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { |
| 2826 | if (!ArgList[i].Name.empty()) |
| 2827 | return error(ArgList[i].Loc, "argument name invalid in function type" ); |
| 2828 | if (ArgList[i].Attrs.hasAttributes()) |
| 2829 | return error(ArgList[i].Loc, |
| 2830 | "argument attributes invalid in function type" ); |
| 2831 | } |
| 2832 | |
| 2833 | SmallVector<Type*, 16> ArgListTy; |
| 2834 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i) |
| 2835 | ArgListTy.push_back(ArgList[i].Ty); |
| 2836 | |
| 2837 | Result = FunctionType::get(Result, ArgListTy, IsVarArg); |
| 2838 | return false; |
| 2839 | } |
| 2840 | |
| 2841 | /// parseAnonStructType - parse an anonymous struct type, which is inlined into |
| 2842 | /// other structs. |
| 2843 | bool LLParser::parseAnonStructType(Type *&Result, bool Packed) { |
| 2844 | SmallVector<Type*, 8> Elts; |
| 2845 | if (parseStructBody(Elts)) |
| 2846 | return true; |
| 2847 | |
| 2848 | Result = StructType::get(Context, Elts, Packed); |
| 2849 | return false; |
| 2850 | } |
| 2851 | |
| 2852 | /// parseStructDefinition - parse a struct in a 'type' definition. |
| 2853 | bool LLParser::parseStructDefinition(SMLoc TypeLoc, StringRef Name, |
| 2854 | std::pair<Type *, LocTy> &Entry, |
| 2855 | Type *&ResultTy) { |
| 2856 | // If the type was already defined, diagnose the redefinition. |
| 2857 | if (Entry.first && !Entry.second.isValid()) |
| 2858 | return error(TypeLoc, "redefinition of type" ); |
| 2859 | |
| 2860 | // If we have opaque, just return without filling in the definition for the |
| 2861 | // struct. This counts as a definition as far as the .ll file goes. |
| 2862 | if (EatIfPresent(lltok::kw_opaque)) { |
| 2863 | // This type is being defined, so clear the location to indicate this. |
| 2864 | Entry.second = SMLoc(); |
| 2865 | |
| 2866 | // If this type number has never been uttered, create it. |
| 2867 | if (!Entry.first) |
| 2868 | Entry.first = StructType::create(Context, Name); |
| 2869 | ResultTy = Entry.first; |
| 2870 | return false; |
| 2871 | } |
| 2872 | |
| 2873 | // If the type starts with '<', then it is either a packed struct or a vector. |
| 2874 | bool isPacked = EatIfPresent(lltok::less); |
| 2875 | |
| 2876 | // If we don't have a struct, then we have a random type alias, which we |
| 2877 | // accept for compatibility with old files. These types are not allowed to be |
| 2878 | // forward referenced and not allowed to be recursive. |
| 2879 | if (Lex.getKind() != lltok::lbrace) { |
| 2880 | if (Entry.first) |
| 2881 | return error(TypeLoc, "forward references to non-struct type" ); |
| 2882 | |
| 2883 | ResultTy = nullptr; |
| 2884 | if (isPacked) |
| 2885 | return parseArrayVectorType(ResultTy, true); |
| 2886 | return parseType(ResultTy); |
| 2887 | } |
| 2888 | |
| 2889 | // This type is being defined, so clear the location to indicate this. |
| 2890 | Entry.second = SMLoc(); |
| 2891 | |
| 2892 | // If this type number has never been uttered, create it. |
| 2893 | if (!Entry.first) |
| 2894 | Entry.first = StructType::create(Context, Name); |
| 2895 | |
| 2896 | StructType *STy = cast<StructType>(Entry.first); |
| 2897 | |
| 2898 | SmallVector<Type*, 8> Body; |
| 2899 | if (parseStructBody(Body) || |
| 2900 | (isPacked && parseToken(lltok::greater, "expected '>' in packed struct" ))) |
| 2901 | return true; |
| 2902 | |
| 2903 | STy->setBody(Body, isPacked); |
| 2904 | ResultTy = STy; |
| 2905 | return false; |
| 2906 | } |
| 2907 | |
| 2908 | /// parseStructType: Handles packed and unpacked types. </> parsed elsewhere. |
| 2909 | /// StructType |
| 2910 | /// ::= '{' '}' |
| 2911 | /// ::= '{' Type (',' Type)* '}' |
| 2912 | /// ::= '<' '{' '}' '>' |
| 2913 | /// ::= '<' '{' Type (',' Type)* '}' '>' |
| 2914 | bool LLParser::parseStructBody(SmallVectorImpl<Type *> &Body) { |
| 2915 | assert(Lex.getKind() == lltok::lbrace); |
| 2916 | Lex.Lex(); // Consume the '{' |
| 2917 | |
| 2918 | // Handle the empty struct. |
| 2919 | if (EatIfPresent(lltok::rbrace)) |
| 2920 | return false; |
| 2921 | |
| 2922 | LocTy EltTyLoc = Lex.getLoc(); |
| 2923 | Type *Ty = nullptr; |
| 2924 | if (parseType(Ty)) |
| 2925 | return true; |
| 2926 | Body.push_back(Ty); |
| 2927 | |
| 2928 | if (!StructType::isValidElementType(Ty)) |
| 2929 | return error(EltTyLoc, "invalid element type for struct" ); |
| 2930 | |
| 2931 | while (EatIfPresent(lltok::comma)) { |
| 2932 | EltTyLoc = Lex.getLoc(); |
| 2933 | if (parseType(Ty)) |
| 2934 | return true; |
| 2935 | |
| 2936 | if (!StructType::isValidElementType(Ty)) |
| 2937 | return error(EltTyLoc, "invalid element type for struct" ); |
| 2938 | |
| 2939 | Body.push_back(Ty); |
| 2940 | } |
| 2941 | |
| 2942 | return parseToken(lltok::rbrace, "expected '}' at end of struct" ); |
| 2943 | } |
| 2944 | |
| 2945 | /// parseArrayVectorType - parse an array or vector type, assuming the first |
| 2946 | /// token has already been consumed. |
| 2947 | /// Type |
| 2948 | /// ::= '[' APSINTVAL 'x' Types ']' |
| 2949 | /// ::= '<' APSINTVAL 'x' Types '>' |
| 2950 | /// ::= '<' 'vscale' 'x' APSINTVAL 'x' Types '>' |
| 2951 | bool LLParser::parseArrayVectorType(Type *&Result, bool IsVector) { |
| 2952 | bool Scalable = false; |
| 2953 | |
| 2954 | if (IsVector && Lex.getKind() == lltok::kw_vscale) { |
| 2955 | Lex.Lex(); // consume the 'vscale' |
| 2956 | if (parseToken(lltok::kw_x, "expected 'x' after vscale" )) |
| 2957 | return true; |
| 2958 | |
| 2959 | Scalable = true; |
| 2960 | } |
| 2961 | |
| 2962 | if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned() || |
| 2963 | Lex.getAPSIntVal().getBitWidth() > 64) |
| 2964 | return tokError("expected number in address space" ); |
| 2965 | |
| 2966 | LocTy SizeLoc = Lex.getLoc(); |
| 2967 | uint64_t Size = Lex.getAPSIntVal().getZExtValue(); |
| 2968 | Lex.Lex(); |
| 2969 | |
| 2970 | if (parseToken(lltok::kw_x, "expected 'x' after element count" )) |
| 2971 | return true; |
| 2972 | |
| 2973 | LocTy TypeLoc = Lex.getLoc(); |
| 2974 | Type *EltTy = nullptr; |
| 2975 | if (parseType(EltTy)) |
| 2976 | return true; |
| 2977 | |
| 2978 | if (parseToken(IsVector ? lltok::greater : lltok::rsquare, |
| 2979 | "expected end of sequential type" )) |
| 2980 | return true; |
| 2981 | |
| 2982 | if (IsVector) { |
| 2983 | if (Size == 0) |
| 2984 | return error(SizeLoc, "zero element vector is illegal" ); |
| 2985 | if ((unsigned)Size != Size) |
| 2986 | return error(SizeLoc, "size too large for vector" ); |
| 2987 | if (!VectorType::isValidElementType(EltTy)) |
| 2988 | return error(TypeLoc, "invalid vector element type" ); |
| 2989 | Result = VectorType::get(EltTy, unsigned(Size), Scalable); |
| 2990 | } else { |
| 2991 | if (!ArrayType::isValidElementType(EltTy)) |
| 2992 | return error(TypeLoc, "invalid array element type" ); |
| 2993 | Result = ArrayType::get(EltTy, Size); |
| 2994 | } |
| 2995 | return false; |
| 2996 | } |
| 2997 | |
| 2998 | //===----------------------------------------------------------------------===// |
| 2999 | // Function Semantic Analysis. |
| 3000 | //===----------------------------------------------------------------------===// |
| 3001 | |
| 3002 | LLParser::PerFunctionState::PerFunctionState(LLParser &p, Function &f, |
| 3003 | int functionNumber) |
| 3004 | : P(p), F(f), FunctionNumber(functionNumber) { |
| 3005 | |
| 3006 | // Insert unnamed arguments into the NumberedVals list. |
| 3007 | for (Argument &A : F.args()) |
| 3008 | if (!A.hasName()) |
| 3009 | NumberedVals.push_back(&A); |
| 3010 | } |
| 3011 | |
| 3012 | LLParser::PerFunctionState::~PerFunctionState() { |
| 3013 | // If there were any forward referenced non-basicblock values, delete them. |
| 3014 | |
| 3015 | for (const auto &P : ForwardRefVals) { |
| 3016 | if (isa<BasicBlock>(P.second.first)) |
| 3017 | continue; |
| 3018 | P.second.first->replaceAllUsesWith( |
| 3019 | UndefValue::get(P.second.first->getType())); |
| 3020 | P.second.first->deleteValue(); |
| 3021 | } |
| 3022 | |
| 3023 | for (const auto &P : ForwardRefValIDs) { |
| 3024 | if (isa<BasicBlock>(P.second.first)) |
| 3025 | continue; |
| 3026 | P.second.first->replaceAllUsesWith( |
| 3027 | UndefValue::get(P.second.first->getType())); |
| 3028 | P.second.first->deleteValue(); |
| 3029 | } |
| 3030 | } |
| 3031 | |
| 3032 | bool LLParser::PerFunctionState::finishFunction() { |
| 3033 | if (!ForwardRefVals.empty()) |
| 3034 | return P.error(ForwardRefVals.begin()->second.second, |
| 3035 | "use of undefined value '%" + ForwardRefVals.begin()->first + |
| 3036 | "'" ); |
| 3037 | if (!ForwardRefValIDs.empty()) |
| 3038 | return P.error(ForwardRefValIDs.begin()->second.second, |
| 3039 | "use of undefined value '%" + |
| 3040 | Twine(ForwardRefValIDs.begin()->first) + "'" ); |
| 3041 | return false; |
| 3042 | } |
| 3043 | |
| 3044 | /// getVal - Get a value with the specified name or ID, creating a |
| 3045 | /// forward reference record if needed. This can return null if the value |
| 3046 | /// exists but does not have the right type. |
| 3047 | Value *LLParser::PerFunctionState::getVal(const std::string &Name, Type *Ty, |
| 3048 | LocTy Loc, bool IsCall) { |
| 3049 | // Look this name up in the normal function symbol table. |
| 3050 | Value *Val = F.getValueSymbolTable()->lookup(Name); |
| 3051 | |
| 3052 | // If this is a forward reference for the value, see if we already created a |
| 3053 | // forward ref record. |
| 3054 | if (!Val) { |
| 3055 | auto I = ForwardRefVals.find(Name); |
| 3056 | if (I != ForwardRefVals.end()) |
| 3057 | Val = I->second.first; |
| 3058 | } |
| 3059 | |
| 3060 | // If we have the value in the symbol table or fwd-ref table, return it. |
| 3061 | if (Val) |
| 3062 | return P.checkValidVariableType(Loc, "%" + Name, Ty, Val, IsCall); |
| 3063 | |
| 3064 | // Don't make placeholders with invalid type. |
| 3065 | if (!Ty->isFirstClassType()) { |
| 3066 | P.error(Loc, "invalid use of a non-first-class type" ); |
| 3067 | return nullptr; |
| 3068 | } |
| 3069 | |
| 3070 | // Otherwise, create a new forward reference for this value and remember it. |
| 3071 | Value *FwdVal; |
| 3072 | if (Ty->isLabelTy()) { |
| 3073 | FwdVal = BasicBlock::Create(F.getContext(), Name, &F); |
| 3074 | } else { |
| 3075 | FwdVal = new Argument(Ty, Name); |
| 3076 | } |
| 3077 | |
| 3078 | ForwardRefVals[Name] = std::make_pair(FwdVal, Loc); |
| 3079 | return FwdVal; |
| 3080 | } |
| 3081 | |
| 3082 | Value *LLParser::PerFunctionState::getVal(unsigned ID, Type *Ty, LocTy Loc, |
| 3083 | bool IsCall) { |
| 3084 | // Look this name up in the normal function symbol table. |
| 3085 | Value *Val = ID < NumberedVals.size() ? NumberedVals[ID] : nullptr; |
| 3086 | |
| 3087 | // If this is a forward reference for the value, see if we already created a |
| 3088 | // forward ref record. |
| 3089 | if (!Val) { |
| 3090 | auto I = ForwardRefValIDs.find(ID); |
| 3091 | if (I != ForwardRefValIDs.end()) |
| 3092 | Val = I->second.first; |
| 3093 | } |
| 3094 | |
| 3095 | // If we have the value in the symbol table or fwd-ref table, return it. |
| 3096 | if (Val) |
| 3097 | return P.checkValidVariableType(Loc, "%" + Twine(ID), Ty, Val, IsCall); |
| 3098 | |
| 3099 | if (!Ty->isFirstClassType()) { |
| 3100 | P.error(Loc, "invalid use of a non-first-class type" ); |
| 3101 | return nullptr; |
| 3102 | } |
| 3103 | |
| 3104 | // Otherwise, create a new forward reference for this value and remember it. |
| 3105 | Value *FwdVal; |
| 3106 | if (Ty->isLabelTy()) { |
| 3107 | FwdVal = BasicBlock::Create(F.getContext(), "" , &F); |
| 3108 | } else { |
| 3109 | FwdVal = new Argument(Ty); |
| 3110 | } |
| 3111 | |
| 3112 | ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc); |
| 3113 | return FwdVal; |
| 3114 | } |
| 3115 | |
| 3116 | /// setInstName - After an instruction is parsed and inserted into its |
| 3117 | /// basic block, this installs its name. |
| 3118 | bool LLParser::PerFunctionState::setInstName(int NameID, |
| 3119 | const std::string &NameStr, |
| 3120 | LocTy NameLoc, Instruction *Inst) { |
| 3121 | // If this instruction has void type, it cannot have a name or ID specified. |
| 3122 | if (Inst->getType()->isVoidTy()) { |
| 3123 | if (NameID != -1 || !NameStr.empty()) |
| 3124 | return P.error(NameLoc, "instructions returning void cannot have a name" ); |
| 3125 | return false; |
| 3126 | } |
| 3127 | |
| 3128 | // If this was a numbered instruction, verify that the instruction is the |
| 3129 | // expected value and resolve any forward references. |
| 3130 | if (NameStr.empty()) { |
| 3131 | // If neither a name nor an ID was specified, just use the next ID. |
| 3132 | if (NameID == -1) |
| 3133 | NameID = NumberedVals.size(); |
| 3134 | |
| 3135 | if (unsigned(NameID) != NumberedVals.size()) |
| 3136 | return P.error(NameLoc, "instruction expected to be numbered '%" + |
| 3137 | Twine(NumberedVals.size()) + "'" ); |
| 3138 | |
| 3139 | auto FI = ForwardRefValIDs.find(NameID); |
| 3140 | if (FI != ForwardRefValIDs.end()) { |
| 3141 | Value *Sentinel = FI->second.first; |
| 3142 | if (Sentinel->getType() != Inst->getType()) |
| 3143 | return P.error(NameLoc, "instruction forward referenced with type '" + |
| 3144 | getTypeString(FI->second.first->getType()) + |
| 3145 | "'" ); |
| 3146 | |
| 3147 | Sentinel->replaceAllUsesWith(Inst); |
| 3148 | Sentinel->deleteValue(); |
| 3149 | ForwardRefValIDs.erase(FI); |
| 3150 | } |
| 3151 | |
| 3152 | NumberedVals.push_back(Inst); |
| 3153 | return false; |
| 3154 | } |
| 3155 | |
| 3156 | // Otherwise, the instruction had a name. Resolve forward refs and set it. |
| 3157 | auto FI = ForwardRefVals.find(NameStr); |
| 3158 | if (FI != ForwardRefVals.end()) { |
| 3159 | Value *Sentinel = FI->second.first; |
| 3160 | if (Sentinel->getType() != Inst->getType()) |
| 3161 | return P.error(NameLoc, "instruction forward referenced with type '" + |
| 3162 | getTypeString(FI->second.first->getType()) + |
| 3163 | "'" ); |
| 3164 | |
| 3165 | Sentinel->replaceAllUsesWith(Inst); |
| 3166 | Sentinel->deleteValue(); |
| 3167 | ForwardRefVals.erase(FI); |
| 3168 | } |
| 3169 | |
| 3170 | // Set the name on the instruction. |
| 3171 | Inst->setName(NameStr); |
| 3172 | |
| 3173 | if (Inst->getName() != NameStr) |
| 3174 | return P.error(NameLoc, "multiple definition of local value named '" + |
| 3175 | NameStr + "'" ); |
| 3176 | return false; |
| 3177 | } |
| 3178 | |
| 3179 | /// getBB - Get a basic block with the specified name or ID, creating a |
| 3180 | /// forward reference record if needed. |
| 3181 | BasicBlock *LLParser::PerFunctionState::getBB(const std::string &Name, |
| 3182 | LocTy Loc) { |
| 3183 | return dyn_cast_or_null<BasicBlock>( |
| 3184 | getVal(Name, Type::getLabelTy(F.getContext()), Loc, /*IsCall=*/false)); |
| 3185 | } |
| 3186 | |
| 3187 | BasicBlock *LLParser::PerFunctionState::getBB(unsigned ID, LocTy Loc) { |
| 3188 | return dyn_cast_or_null<BasicBlock>( |
| 3189 | getVal(ID, Type::getLabelTy(F.getContext()), Loc, /*IsCall=*/false)); |
| 3190 | } |
| 3191 | |
| 3192 | /// defineBB - Define the specified basic block, which is either named or |
| 3193 | /// unnamed. If there is an error, this returns null otherwise it returns |
| 3194 | /// the block being defined. |
| 3195 | BasicBlock *LLParser::PerFunctionState::defineBB(const std::string &Name, |
| 3196 | int NameID, LocTy Loc) { |
| 3197 | BasicBlock *BB; |
| 3198 | if (Name.empty()) { |
| 3199 | if (NameID != -1 && unsigned(NameID) != NumberedVals.size()) { |
| 3200 | P.error(Loc, "label expected to be numbered '" + |
| 3201 | Twine(NumberedVals.size()) + "'" ); |
| 3202 | return nullptr; |
| 3203 | } |
| 3204 | BB = getBB(NumberedVals.size(), Loc); |
| 3205 | if (!BB) { |
| 3206 | P.error(Loc, "unable to create block numbered '" + |
| 3207 | Twine(NumberedVals.size()) + "'" ); |
| 3208 | return nullptr; |
| 3209 | } |
| 3210 | } else { |
| 3211 | BB = getBB(Name, Loc); |
| 3212 | if (!BB) { |
| 3213 | P.error(Loc, "unable to create block named '" + Name + "'" ); |
| 3214 | return nullptr; |
| 3215 | } |
| 3216 | } |
| 3217 | |
| 3218 | // Move the block to the end of the function. Forward ref'd blocks are |
| 3219 | // inserted wherever they happen to be referenced. |
| 3220 | F.getBasicBlockList().splice(F.end(), F.getBasicBlockList(), BB); |
| 3221 | |
| 3222 | // Remove the block from forward ref sets. |
| 3223 | if (Name.empty()) { |
| 3224 | ForwardRefValIDs.erase(NumberedVals.size()); |
| 3225 | NumberedVals.push_back(BB); |
| 3226 | } else { |
| 3227 | // BB forward references are already in the function symbol table. |
| 3228 | ForwardRefVals.erase(Name); |
| 3229 | } |
| 3230 | |
| 3231 | return BB; |
| 3232 | } |
| 3233 | |
| 3234 | //===----------------------------------------------------------------------===// |
| 3235 | // Constants. |
| 3236 | //===----------------------------------------------------------------------===// |
| 3237 | |
| 3238 | /// parseValID - parse an abstract value that doesn't necessarily have a |
| 3239 | /// type implied. For example, if we parse "4" we don't know what integer type |
| 3240 | /// it has. The value will later be combined with its type and checked for |
| 3241 | /// sanity. PFS is used to convert function-local operands of metadata (since |
| 3242 | /// metadata operands are not just parsed here but also converted to values). |
| 3243 | /// PFS can be null when we are not parsing metadata values inside a function. |
| 3244 | bool LLParser::parseValID(ValID &ID, PerFunctionState *PFS) { |
| 3245 | ID.Loc = Lex.getLoc(); |
| 3246 | switch (Lex.getKind()) { |
| 3247 | default: |
| 3248 | return tokError("expected value token" ); |
| 3249 | case lltok::GlobalID: // @42 |
| 3250 | ID.UIntVal = Lex.getUIntVal(); |
| 3251 | ID.Kind = ValID::t_GlobalID; |
| 3252 | break; |
| 3253 | case lltok::GlobalVar: // @foo |
| 3254 | ID.StrVal = Lex.getStrVal(); |
| 3255 | ID.Kind = ValID::t_GlobalName; |
| 3256 | break; |
| 3257 | case lltok::LocalVarID: // %42 |
| 3258 | ID.UIntVal = Lex.getUIntVal(); |
| 3259 | ID.Kind = ValID::t_LocalID; |
| 3260 | break; |
| 3261 | case lltok::LocalVar: // %foo |
| 3262 | ID.StrVal = Lex.getStrVal(); |
| 3263 | ID.Kind = ValID::t_LocalName; |
| 3264 | break; |
| 3265 | case lltok::APSInt: |
| 3266 | ID.APSIntVal = Lex.getAPSIntVal(); |
| 3267 | ID.Kind = ValID::t_APSInt; |
| 3268 | break; |
| 3269 | case lltok::APFloat: |
| 3270 | ID.APFloatVal = Lex.getAPFloatVal(); |
| 3271 | ID.Kind = ValID::t_APFloat; |
| 3272 | break; |
| 3273 | case lltok::kw_true: |
| 3274 | ID.ConstantVal = ConstantInt::getTrue(Context); |
| 3275 | ID.Kind = ValID::t_Constant; |
| 3276 | break; |
| 3277 | case lltok::kw_false: |
| 3278 | ID.ConstantVal = ConstantInt::getFalse(Context); |
| 3279 | ID.Kind = ValID::t_Constant; |
| 3280 | break; |
| 3281 | case lltok::kw_null: ID.Kind = ValID::t_Null; break; |
| 3282 | case lltok::kw_undef: ID.Kind = ValID::t_Undef; break; |
| 3283 | case lltok::kw_poison: ID.Kind = ValID::t_Poison; break; |
| 3284 | case lltok::kw_zeroinitializer: ID.Kind = ValID::t_Zero; break; |
| 3285 | case lltok::kw_none: ID.Kind = ValID::t_None; break; |
| 3286 | |
| 3287 | case lltok::lbrace: { |
| 3288 | // ValID ::= '{' ConstVector '}' |
| 3289 | Lex.Lex(); |
| 3290 | SmallVector<Constant*, 16> Elts; |
| 3291 | if (parseGlobalValueVector(Elts) || |
| 3292 | parseToken(lltok::rbrace, "expected end of struct constant" )) |
| 3293 | return true; |
| 3294 | |
| 3295 | ID.ConstantStructElts = std::make_unique<Constant *[]>(Elts.size()); |
| 3296 | ID.UIntVal = Elts.size(); |
| 3297 | memcpy(ID.ConstantStructElts.get(), Elts.data(), |
| 3298 | Elts.size() * sizeof(Elts[0])); |
| 3299 | ID.Kind = ValID::t_ConstantStruct; |
| 3300 | return false; |
| 3301 | } |
| 3302 | case lltok::less: { |
| 3303 | // ValID ::= '<' ConstVector '>' --> Vector. |
| 3304 | // ValID ::= '<' '{' ConstVector '}' '>' --> Packed Struct. |
| 3305 | Lex.Lex(); |
| 3306 | bool isPackedStruct = EatIfPresent(lltok::lbrace); |
| 3307 | |
| 3308 | SmallVector<Constant*, 16> Elts; |
| 3309 | LocTy FirstEltLoc = Lex.getLoc(); |
| 3310 | if (parseGlobalValueVector(Elts) || |
| 3311 | (isPackedStruct && |
| 3312 | parseToken(lltok::rbrace, "expected end of packed struct" )) || |
| 3313 | parseToken(lltok::greater, "expected end of constant" )) |
| 3314 | return true; |
| 3315 | |
| 3316 | if (isPackedStruct) { |
| 3317 | ID.ConstantStructElts = std::make_unique<Constant *[]>(Elts.size()); |
| 3318 | memcpy(ID.ConstantStructElts.get(), Elts.data(), |
| 3319 | Elts.size() * sizeof(Elts[0])); |
| 3320 | ID.UIntVal = Elts.size(); |
| 3321 | ID.Kind = ValID::t_PackedConstantStruct; |
| 3322 | return false; |
| 3323 | } |
| 3324 | |
| 3325 | if (Elts.empty()) |
| 3326 | return error(ID.Loc, "constant vector must not be empty" ); |
| 3327 | |
| 3328 | if (!Elts[0]->getType()->isIntegerTy() && |
| 3329 | !Elts[0]->getType()->isFloatingPointTy() && |
| 3330 | !Elts[0]->getType()->isPointerTy()) |
| 3331 | return error( |
| 3332 | FirstEltLoc, |
| 3333 | "vector elements must have integer, pointer or floating point type" ); |
| 3334 | |
| 3335 | // Verify that all the vector elements have the same type. |
| 3336 | for (unsigned i = 1, e = Elts.size(); i != e; ++i) |
| 3337 | if (Elts[i]->getType() != Elts[0]->getType()) |
| 3338 | return error(FirstEltLoc, "vector element #" + Twine(i) + |
| 3339 | " is not of type '" + |
| 3340 | getTypeString(Elts[0]->getType())); |
| 3341 | |
| 3342 | ID.ConstantVal = ConstantVector::get(Elts); |
| 3343 | ID.Kind = ValID::t_Constant; |
| 3344 | return false; |
| 3345 | } |
| 3346 | case lltok::lsquare: { // Array Constant |
| 3347 | Lex.Lex(); |
| 3348 | SmallVector<Constant*, 16> Elts; |
| 3349 | LocTy FirstEltLoc = Lex.getLoc(); |
| 3350 | if (parseGlobalValueVector(Elts) || |
| 3351 | parseToken(lltok::rsquare, "expected end of array constant" )) |
| 3352 | return true; |
| 3353 | |
| 3354 | // Handle empty element. |
| 3355 | if (Elts.empty()) { |
| 3356 | // Use undef instead of an array because it's inconvenient to determine |
| 3357 | // the element type at this point, there being no elements to examine. |
| 3358 | ID.Kind = ValID::t_EmptyArray; |
| 3359 | return false; |
| 3360 | } |
| 3361 | |
| 3362 | if (!Elts[0]->getType()->isFirstClassType()) |
| 3363 | return error(FirstEltLoc, "invalid array element type: " + |
| 3364 | getTypeString(Elts[0]->getType())); |
| 3365 | |
| 3366 | ArrayType *ATy = ArrayType::get(Elts[0]->getType(), Elts.size()); |
| 3367 | |
| 3368 | // Verify all elements are correct type! |
| 3369 | for (unsigned i = 0, e = Elts.size(); i != e; ++i) { |
| 3370 | if (Elts[i]->getType() != Elts[0]->getType()) |
| 3371 | return error(FirstEltLoc, "array element #" + Twine(i) + |
| 3372 | " is not of type '" + |
| 3373 | getTypeString(Elts[0]->getType())); |
| 3374 | } |
| 3375 | |
| 3376 | ID.ConstantVal = ConstantArray::get(ATy, Elts); |
| 3377 | ID.Kind = ValID::t_Constant; |
| 3378 | return false; |
| 3379 | } |
| 3380 | case lltok::kw_c: // c "foo" |
| 3381 | Lex.Lex(); |
| 3382 | ID.ConstantVal = ConstantDataArray::getString(Context, Lex.getStrVal(), |
| 3383 | false); |
| 3384 | if (parseToken(lltok::StringConstant, "expected string" )) |
| 3385 | return true; |
| 3386 | ID.Kind = ValID::t_Constant; |
| 3387 | return false; |
| 3388 | |
| 3389 | case lltok::kw_asm: { |
| 3390 | // ValID ::= 'asm' SideEffect? AlignStack? IntelDialect? STRINGCONSTANT ',' |
| 3391 | // STRINGCONSTANT |
| 3392 | bool HasSideEffect, AlignStack, AsmDialect; |
| 3393 | Lex.Lex(); |
| 3394 | if (parseOptionalToken(lltok::kw_sideeffect, HasSideEffect) || |
| 3395 | parseOptionalToken(lltok::kw_alignstack, AlignStack) || |
| 3396 | parseOptionalToken(lltok::kw_inteldialect, AsmDialect) || |
| 3397 | parseStringConstant(ID.StrVal) || |
| 3398 | parseToken(lltok::comma, "expected comma in inline asm expression" ) || |
| 3399 | parseToken(lltok::StringConstant, "expected constraint string" )) |
| 3400 | return true; |
| 3401 | ID.StrVal2 = Lex.getStrVal(); |
| 3402 | ID.UIntVal = unsigned(HasSideEffect) | (unsigned(AlignStack)<<1) | |
| 3403 | (unsigned(AsmDialect)<<2); |
| 3404 | ID.Kind = ValID::t_InlineAsm; |
| 3405 | return false; |
| 3406 | } |
| 3407 | |
| 3408 | case lltok::kw_blockaddress: { |
| 3409 | // ValID ::= 'blockaddress' '(' @foo ',' %bar ')' |
| 3410 | Lex.Lex(); |
| 3411 | |
| 3412 | ValID Fn, Label; |
| 3413 | |
| 3414 | if (parseToken(lltok::lparen, "expected '(' in block address expression" ) || |
| 3415 | parseValID(Fn) || |
| 3416 | parseToken(lltok::comma, |
| 3417 | "expected comma in block address expression" ) || |
| 3418 | parseValID(Label) || |
| 3419 | parseToken(lltok::rparen, "expected ')' in block address expression" )) |
| 3420 | return true; |
| 3421 | |
| 3422 | if (Fn.Kind != ValID::t_GlobalID && Fn.Kind != ValID::t_GlobalName) |
| 3423 | return error(Fn.Loc, "expected function name in blockaddress" ); |
| 3424 | if (Label.Kind != ValID::t_LocalID && Label.Kind != ValID::t_LocalName) |
| 3425 | return error(Label.Loc, "expected basic block name in blockaddress" ); |
| 3426 | |
| 3427 | // Try to find the function (but skip it if it's forward-referenced). |
| 3428 | GlobalValue *GV = nullptr; |
| 3429 | if (Fn.Kind == ValID::t_GlobalID) { |
| 3430 | if (Fn.UIntVal < NumberedVals.size()) |
| 3431 | GV = NumberedVals[Fn.UIntVal]; |
| 3432 | } else if (!ForwardRefVals.count(Fn.StrVal)) { |
| 3433 | GV = M->getNamedValue(Fn.StrVal); |
| 3434 | } |
| 3435 | Function *F = nullptr; |
| 3436 | if (GV) { |
| 3437 | // Confirm that it's actually a function with a definition. |
| 3438 | if (!isa<Function>(GV)) |
| 3439 | return error(Fn.Loc, "expected function name in blockaddress" ); |
| 3440 | F = cast<Function>(GV); |
| 3441 | if (F->isDeclaration()) |
| 3442 | return error(Fn.Loc, "cannot take blockaddress inside a declaration" ); |
| 3443 | } |
| 3444 | |
| 3445 | if (!F) { |
| 3446 | // Make a global variable as a placeholder for this reference. |
| 3447 | GlobalValue *&FwdRef = |
| 3448 | ForwardRefBlockAddresses.insert(std::make_pair( |
| 3449 | std::move(Fn), |
| 3450 | std::map<ValID, GlobalValue *>())) |
| 3451 | .first->second.insert(std::make_pair(std::move(Label), nullptr)) |
| 3452 | .first->second; |
| 3453 | if (!FwdRef) |
| 3454 | FwdRef = new GlobalVariable(*M, Type::getInt8Ty(Context), false, |
| 3455 | GlobalValue::InternalLinkage, nullptr, "" ); |
| 3456 | ID.ConstantVal = FwdRef; |
| 3457 | ID.Kind = ValID::t_Constant; |
| 3458 | return false; |
| 3459 | } |
| 3460 | |
| 3461 | // We found the function; now find the basic block. Don't use PFS, since we |
| 3462 | // might be inside a constant expression. |
| 3463 | BasicBlock *BB; |
| 3464 | if (BlockAddressPFS && F == &BlockAddressPFS->getFunction()) { |
| 3465 | if (Label.Kind == ValID::t_LocalID) |
| 3466 | BB = BlockAddressPFS->getBB(Label.UIntVal, Label.Loc); |
| 3467 | else |
| 3468 | BB = BlockAddressPFS->getBB(Label.StrVal, Label.Loc); |
| 3469 | if (!BB) |
| 3470 | return error(Label.Loc, "referenced value is not a basic block" ); |
| 3471 | } else { |
| 3472 | if (Label.Kind == ValID::t_LocalID) |
| 3473 | return error(Label.Loc, "cannot take address of numeric label after " |
| 3474 | "the function is defined" ); |
| 3475 | BB = dyn_cast_or_null<BasicBlock>( |
| 3476 | F->getValueSymbolTable()->lookup(Label.StrVal)); |
| 3477 | if (!BB) |
| 3478 | return error(Label.Loc, "referenced value is not a basic block" ); |
| 3479 | } |
| 3480 | |
| 3481 | ID.ConstantVal = BlockAddress::get(F, BB); |
| 3482 | ID.Kind = ValID::t_Constant; |
| 3483 | return false; |
| 3484 | } |
| 3485 | |
| 3486 | case lltok::kw_dso_local_equivalent: { |
| 3487 | // ValID ::= 'dso_local_equivalent' @foo |
| 3488 | Lex.Lex(); |
| 3489 | |
| 3490 | ValID Fn; |
| 3491 | |
| 3492 | if (parseValID(Fn)) |
| 3493 | return true; |
| 3494 | |
| 3495 | if (Fn.Kind != ValID::t_GlobalID && Fn.Kind != ValID::t_GlobalName) |
| 3496 | return error(Fn.Loc, |
| 3497 | "expected global value name in dso_local_equivalent" ); |
| 3498 | |
| 3499 | // Try to find the function (but skip it if it's forward-referenced). |
| 3500 | GlobalValue *GV = nullptr; |
| 3501 | if (Fn.Kind == ValID::t_GlobalID) { |
| 3502 | if (Fn.UIntVal < NumberedVals.size()) |
| 3503 | GV = NumberedVals[Fn.UIntVal]; |
| 3504 | } else if (!ForwardRefVals.count(Fn.StrVal)) { |
| 3505 | GV = M->getNamedValue(Fn.StrVal); |
| 3506 | } |
| 3507 | |
| 3508 | assert(GV && "Could not find a corresponding global variable" ); |
| 3509 | |
| 3510 | if (!GV->getValueType()->isFunctionTy()) |
| 3511 | return error(Fn.Loc, "expected a function, alias to function, or ifunc " |
| 3512 | "in dso_local_equivalent" ); |
| 3513 | |
| 3514 | ID.ConstantVal = DSOLocalEquivalent::get(GV); |
| 3515 | ID.Kind = ValID::t_Constant; |
| 3516 | return false; |
| 3517 | } |
| 3518 | |
| 3519 | case lltok::kw_trunc: |
| 3520 | case lltok::kw_zext: |
| 3521 | case lltok::kw_sext: |
| 3522 | case lltok::kw_fptrunc: |
| 3523 | case lltok::kw_fpext: |
| 3524 | case lltok::kw_bitcast: |
| 3525 | case lltok::kw_addrspacecast: |
| 3526 | case lltok::kw_uitofp: |
| 3527 | case lltok::kw_sitofp: |
| 3528 | case lltok::kw_fptoui: |
| 3529 | case lltok::kw_fptosi: |
| 3530 | case lltok::kw_inttoptr: |
| 3531 | case lltok::kw_ptrtoint: { |
| 3532 | unsigned Opc = Lex.getUIntVal(); |
| 3533 | Type *DestTy = nullptr; |
| 3534 | Constant *SrcVal; |
| 3535 | Lex.Lex(); |
| 3536 | if (parseToken(lltok::lparen, "expected '(' after constantexpr cast" ) || |
| 3537 | parseGlobalTypeAndValue(SrcVal) || |
| 3538 | parseToken(lltok::kw_to, "expected 'to' in constantexpr cast" ) || |
| 3539 | parseType(DestTy) || |
| 3540 | parseToken(lltok::rparen, "expected ')' at end of constantexpr cast" )) |
| 3541 | return true; |
| 3542 | if (!CastInst::castIsValid((Instruction::CastOps)Opc, SrcVal, DestTy)) |
| 3543 | return error(ID.Loc, "invalid cast opcode for cast from '" + |
| 3544 | getTypeString(SrcVal->getType()) + "' to '" + |
| 3545 | getTypeString(DestTy) + "'" ); |
| 3546 | ID.ConstantVal = ConstantExpr::getCast((Instruction::CastOps)Opc, |
| 3547 | SrcVal, DestTy); |
| 3548 | ID.Kind = ValID::t_Constant; |
| 3549 | return false; |
| 3550 | } |
| 3551 | case lltok::kw_extractvalue: { |
| 3552 | Lex.Lex(); |
| 3553 | Constant *Val; |
| 3554 | SmallVector<unsigned, 4> Indices; |
| 3555 | if (parseToken(lltok::lparen, |
| 3556 | "expected '(' in extractvalue constantexpr" ) || |
| 3557 | parseGlobalTypeAndValue(Val) || parseIndexList(Indices) || |
| 3558 | parseToken(lltok::rparen, "expected ')' in extractvalue constantexpr" )) |
| 3559 | return true; |
| 3560 | |
| 3561 | if (!Val->getType()->isAggregateType()) |
| 3562 | return error(ID.Loc, "extractvalue operand must be aggregate type" ); |
| 3563 | if (!ExtractValueInst::getIndexedType(Val->getType(), Indices)) |
| 3564 | return error(ID.Loc, "invalid indices for extractvalue" ); |
| 3565 | ID.ConstantVal = ConstantExpr::getExtractValue(Val, Indices); |
| 3566 | ID.Kind = ValID::t_Constant; |
| 3567 | return false; |
| 3568 | } |
| 3569 | case lltok::kw_insertvalue: { |
| 3570 | Lex.Lex(); |
| 3571 | Constant *Val0, *Val1; |
| 3572 | SmallVector<unsigned, 4> Indices; |
| 3573 | if (parseToken(lltok::lparen, "expected '(' in insertvalue constantexpr" ) || |
| 3574 | parseGlobalTypeAndValue(Val0) || |
| 3575 | parseToken(lltok::comma, |
| 3576 | "expected comma in insertvalue constantexpr" ) || |
| 3577 | parseGlobalTypeAndValue(Val1) || parseIndexList(Indices) || |
| 3578 | parseToken(lltok::rparen, "expected ')' in insertvalue constantexpr" )) |
| 3579 | return true; |
| 3580 | if (!Val0->getType()->isAggregateType()) |
| 3581 | return error(ID.Loc, "insertvalue operand must be aggregate type" ); |
| 3582 | Type *IndexedType = |
| 3583 | ExtractValueInst::getIndexedType(Val0->getType(), Indices); |
| 3584 | if (!IndexedType) |
| 3585 | return error(ID.Loc, "invalid indices for insertvalue" ); |
| 3586 | if (IndexedType != Val1->getType()) |
| 3587 | return error(ID.Loc, "insertvalue operand and field disagree in type: '" + |
| 3588 | getTypeString(Val1->getType()) + |
| 3589 | "' instead of '" + getTypeString(IndexedType) + |
| 3590 | "'" ); |
| 3591 | ID.ConstantVal = ConstantExpr::getInsertValue(Val0, Val1, Indices); |
| 3592 | ID.Kind = ValID::t_Constant; |
| 3593 | return false; |
| 3594 | } |
| 3595 | case lltok::kw_icmp: |
| 3596 | case lltok::kw_fcmp: { |
| 3597 | unsigned PredVal, Opc = Lex.getUIntVal(); |
| 3598 | Constant *Val0, *Val1; |
| 3599 | Lex.Lex(); |
| 3600 | if (parseCmpPredicate(PredVal, Opc) || |
| 3601 | parseToken(lltok::lparen, "expected '(' in compare constantexpr" ) || |
| 3602 | parseGlobalTypeAndValue(Val0) || |
| 3603 | parseToken(lltok::comma, "expected comma in compare constantexpr" ) || |
| 3604 | parseGlobalTypeAndValue(Val1) || |
| 3605 | parseToken(lltok::rparen, "expected ')' in compare constantexpr" )) |
| 3606 | return true; |
| 3607 | |
| 3608 | if (Val0->getType() != Val1->getType()) |
| 3609 | return error(ID.Loc, "compare operands must have the same type" ); |
| 3610 | |
| 3611 | CmpInst::Predicate Pred = (CmpInst::Predicate)PredVal; |
| 3612 | |
| 3613 | if (Opc == Instruction::FCmp) { |
| 3614 | if (!Val0->getType()->isFPOrFPVectorTy()) |
| 3615 | return error(ID.Loc, "fcmp requires floating point operands" ); |
| 3616 | ID.ConstantVal = ConstantExpr::getFCmp(Pred, Val0, Val1); |
| 3617 | } else { |
| 3618 | assert(Opc == Instruction::ICmp && "Unexpected opcode for CmpInst!" ); |
| 3619 | if (!Val0->getType()->isIntOrIntVectorTy() && |
| 3620 | !Val0->getType()->isPtrOrPtrVectorTy()) |
| 3621 | return error(ID.Loc, "icmp requires pointer or integer operands" ); |
| 3622 | ID.ConstantVal = ConstantExpr::getICmp(Pred, Val0, Val1); |
| 3623 | } |
| 3624 | ID.Kind = ValID::t_Constant; |
| 3625 | return false; |
| 3626 | } |
| 3627 | |
| 3628 | // Unary Operators. |
| 3629 | case lltok::kw_fneg: { |
| 3630 | unsigned Opc = Lex.getUIntVal(); |
| 3631 | Constant *Val; |
| 3632 | Lex.Lex(); |
| 3633 | if (parseToken(lltok::lparen, "expected '(' in unary constantexpr" ) || |
| 3634 | parseGlobalTypeAndValue(Val) || |
| 3635 | parseToken(lltok::rparen, "expected ')' in unary constantexpr" )) |
| 3636 | return true; |
| 3637 | |
| 3638 | // Check that the type is valid for the operator. |
| 3639 | switch (Opc) { |
| 3640 | case Instruction::FNeg: |
| 3641 | if (!Val->getType()->isFPOrFPVectorTy()) |
| 3642 | return error(ID.Loc, "constexpr requires fp operands" ); |
| 3643 | break; |
| 3644 | default: llvm_unreachable("Unknown unary operator!" ); |
| 3645 | } |
| 3646 | unsigned Flags = 0; |
| 3647 | Constant *C = ConstantExpr::get(Opc, Val, Flags); |
| 3648 | ID.ConstantVal = C; |
| 3649 | ID.Kind = ValID::t_Constant; |
| 3650 | return false; |
| 3651 | } |
| 3652 | // Binary Operators. |
| 3653 | case lltok::kw_add: |
| 3654 | case lltok::kw_fadd: |
| 3655 | case lltok::kw_sub: |
| 3656 | case lltok::kw_fsub: |
| 3657 | case lltok::kw_mul: |
| 3658 | case lltok::kw_fmul: |
| 3659 | case lltok::kw_udiv: |
| 3660 | case lltok::kw_sdiv: |
| 3661 | case lltok::kw_fdiv: |
| 3662 | case lltok::kw_urem: |
| 3663 | case lltok::kw_srem: |
| 3664 | case lltok::kw_frem: |
| 3665 | case lltok::kw_shl: |
| 3666 | case lltok::kw_lshr: |
| 3667 | case lltok::kw_ashr: { |
| 3668 | bool NUW = false; |
| 3669 | bool NSW = false; |
| 3670 | bool Exact = false; |
| 3671 | unsigned Opc = Lex.getUIntVal(); |
| 3672 | Constant *Val0, *Val1; |
| 3673 | Lex.Lex(); |
| 3674 | if (Opc == Instruction::Add || Opc == Instruction::Sub || |
| 3675 | Opc == Instruction::Mul || Opc == Instruction::Shl) { |
| 3676 | if (EatIfPresent(lltok::kw_nuw)) |
| 3677 | NUW = true; |
| 3678 | if (EatIfPresent(lltok::kw_nsw)) { |
| 3679 | NSW = true; |
| 3680 | if (EatIfPresent(lltok::kw_nuw)) |
| 3681 | NUW = true; |
| 3682 | } |
| 3683 | } else if (Opc == Instruction::SDiv || Opc == Instruction::UDiv || |
| 3684 | Opc == Instruction::LShr || Opc == Instruction::AShr) { |
| 3685 | if (EatIfPresent(lltok::kw_exact)) |
| 3686 | Exact = true; |
| 3687 | } |
| 3688 | if (parseToken(lltok::lparen, "expected '(' in binary constantexpr" ) || |
| 3689 | parseGlobalTypeAndValue(Val0) || |
| 3690 | parseToken(lltok::comma, "expected comma in binary constantexpr" ) || |
| 3691 | parseGlobalTypeAndValue(Val1) || |
| 3692 | parseToken(lltok::rparen, "expected ')' in binary constantexpr" )) |
| 3693 | return true; |
| 3694 | if (Val0->getType() != Val1->getType()) |
| 3695 | return error(ID.Loc, "operands of constexpr must have same type" ); |
| 3696 | // Check that the type is valid for the operator. |
| 3697 | switch (Opc) { |
| 3698 | case Instruction::Add: |
| 3699 | case Instruction::Sub: |
| 3700 | case Instruction::Mul: |
| 3701 | case Instruction::UDiv: |
| 3702 | case Instruction::SDiv: |
| 3703 | case Instruction::URem: |
| 3704 | case Instruction::SRem: |
| 3705 | case Instruction::Shl: |
| 3706 | case Instruction::AShr: |
| 3707 | case Instruction::LShr: |
| 3708 | if (!Val0->getType()->isIntOrIntVectorTy()) |
| 3709 | return error(ID.Loc, "constexpr requires integer operands" ); |
| 3710 | break; |
| 3711 | case Instruction::FAdd: |
| 3712 | case Instruction::FSub: |
| 3713 | case Instruction::FMul: |
| 3714 | case Instruction::FDiv: |
| 3715 | case Instruction::FRem: |
| 3716 | if (!Val0->getType()->isFPOrFPVectorTy()) |
| 3717 | return error(ID.Loc, "constexpr requires fp operands" ); |
| 3718 | break; |
| 3719 | default: llvm_unreachable("Unknown binary operator!" ); |
| 3720 | } |
| 3721 | unsigned Flags = 0; |
| 3722 | if (NUW) Flags |= OverflowingBinaryOperator::NoUnsignedWrap; |
| 3723 | if (NSW) Flags |= OverflowingBinaryOperator::NoSignedWrap; |
| 3724 | if (Exact) Flags |= PossiblyExactOperator::IsExact; |
| 3725 | Constant *C = ConstantExpr::get(Opc, Val0, Val1, Flags); |
| 3726 | ID.ConstantVal = C; |
| 3727 | ID.Kind = ValID::t_Constant; |
| 3728 | return false; |
| 3729 | } |
| 3730 | |
| 3731 | // Logical Operations |
| 3732 | case lltok::kw_and: |
| 3733 | case lltok::kw_or: |
| 3734 | case lltok::kw_xor: { |
| 3735 | unsigned Opc = Lex.getUIntVal(); |
| 3736 | Constant *Val0, *Val1; |
| 3737 | Lex.Lex(); |
| 3738 | if (parseToken(lltok::lparen, "expected '(' in logical constantexpr" ) || |
| 3739 | parseGlobalTypeAndValue(Val0) || |
| 3740 | parseToken(lltok::comma, "expected comma in logical constantexpr" ) || |
| 3741 | parseGlobalTypeAndValue(Val1) || |
| 3742 | parseToken(lltok::rparen, "expected ')' in logical constantexpr" )) |
| 3743 | return true; |
| 3744 | if (Val0->getType() != Val1->getType()) |
| 3745 | return error(ID.Loc, "operands of constexpr must have same type" ); |
| 3746 | if (!Val0->getType()->isIntOrIntVectorTy()) |
| 3747 | return error(ID.Loc, |
| 3748 | "constexpr requires integer or integer vector operands" ); |
| 3749 | ID.ConstantVal = ConstantExpr::get(Opc, Val0, Val1); |
| 3750 | ID.Kind = ValID::t_Constant; |
| 3751 | return false; |
| 3752 | } |
| 3753 | |
| 3754 | case lltok::kw_getelementptr: |
| 3755 | case lltok::kw_shufflevector: |
| 3756 | case lltok::kw_insertelement: |
| 3757 | case lltok::kw_extractelement: |
| 3758 | case lltok::kw_select: { |
| 3759 | unsigned Opc = Lex.getUIntVal(); |
| 3760 | SmallVector<Constant*, 16> Elts; |
| 3761 | bool InBounds = false; |
| 3762 | Type *Ty; |
| 3763 | Lex.Lex(); |
| 3764 | |
| 3765 | if (Opc == Instruction::GetElementPtr) |
| 3766 | InBounds = EatIfPresent(lltok::kw_inbounds); |
| 3767 | |
| 3768 | if (parseToken(lltok::lparen, "expected '(' in constantexpr" )) |
| 3769 | return true; |
| 3770 | |
| 3771 | LocTy ExplicitTypeLoc = Lex.getLoc(); |
| 3772 | if (Opc == Instruction::GetElementPtr) { |
| 3773 | if (parseType(Ty) || |
| 3774 | parseToken(lltok::comma, "expected comma after getelementptr's type" )) |
| 3775 | return true; |
| 3776 | } |
| 3777 | |
| 3778 | Optional<unsigned> InRangeOp; |
| 3779 | if (parseGlobalValueVector( |
| 3780 | Elts, Opc == Instruction::GetElementPtr ? &InRangeOp : nullptr) || |
| 3781 | parseToken(lltok::rparen, "expected ')' in constantexpr" )) |
| 3782 | return true; |
| 3783 | |
| 3784 | if (Opc == Instruction::GetElementPtr) { |
| 3785 | if (Elts.size() == 0 || |
| 3786 | !Elts[0]->getType()->isPtrOrPtrVectorTy()) |
| 3787 | return error(ID.Loc, "base of getelementptr must be a pointer" ); |
| 3788 | |
| 3789 | Type *BaseType = Elts[0]->getType(); |
| 3790 | auto *BasePointerType = cast<PointerType>(BaseType->getScalarType()); |
| 3791 | if (Ty != BasePointerType->getElementType()) |
| 3792 | return error( |
| 3793 | ExplicitTypeLoc, |
| 3794 | "explicit pointee type doesn't match operand's pointee type" ); |
| 3795 | |
| 3796 | unsigned GEPWidth = |
| 3797 | BaseType->isVectorTy() |
| 3798 | ? cast<FixedVectorType>(BaseType)->getNumElements() |
| 3799 | : 0; |
| 3800 | |
| 3801 | ArrayRef<Constant *> Indices(Elts.begin() + 1, Elts.end()); |
| 3802 | for (Constant *Val : Indices) { |
| 3803 | Type *ValTy = Val->getType(); |
| 3804 | if (!ValTy->isIntOrIntVectorTy()) |
| 3805 | return error(ID.Loc, "getelementptr index must be an integer" ); |
| 3806 | if (auto *ValVTy = dyn_cast<VectorType>(ValTy)) { |
| 3807 | unsigned ValNumEl = cast<FixedVectorType>(ValVTy)->getNumElements(); |
| 3808 | if (GEPWidth && (ValNumEl != GEPWidth)) |
| 3809 | return error( |
| 3810 | ID.Loc, |
| 3811 | "getelementptr vector index has a wrong number of elements" ); |
| 3812 | // GEPWidth may have been unknown because the base is a scalar, |
| 3813 | // but it is known now. |
| 3814 | GEPWidth = ValNumEl; |
| 3815 | } |
| 3816 | } |
| 3817 | |
| 3818 | SmallPtrSet<Type*, 4> Visited; |
| 3819 | if (!Indices.empty() && !Ty->isSized(&Visited)) |
| 3820 | return error(ID.Loc, "base element of getelementptr must be sized" ); |
| 3821 | |
| 3822 | if (!GetElementPtrInst::getIndexedType(Ty, Indices)) |
| 3823 | return error(ID.Loc, "invalid getelementptr indices" ); |
| 3824 | |
| 3825 | if (InRangeOp) { |
| 3826 | if (*InRangeOp == 0) |
| 3827 | return error(ID.Loc, |
| 3828 | "inrange keyword may not appear on pointer operand" ); |
| 3829 | --*InRangeOp; |
| 3830 | } |
| 3831 | |
| 3832 | ID.ConstantVal = ConstantExpr::getGetElementPtr(Ty, Elts[0], Indices, |
| 3833 | InBounds, InRangeOp); |
| 3834 | } else if (Opc == Instruction::Select) { |
| 3835 | if (Elts.size() != 3) |
| 3836 | return error(ID.Loc, "expected three operands to select" ); |
| 3837 | if (const char *Reason = SelectInst::areInvalidOperands(Elts[0], Elts[1], |
| 3838 | Elts[2])) |
| 3839 | return error(ID.Loc, Reason); |
| 3840 | ID.ConstantVal = ConstantExpr::getSelect(Elts[0], Elts[1], Elts[2]); |
| 3841 | } else if (Opc == Instruction::ShuffleVector) { |
| 3842 | if (Elts.size() != 3) |
| 3843 | return error(ID.Loc, "expected three operands to shufflevector" ); |
| 3844 | if (!ShuffleVectorInst::isValidOperands(Elts[0], Elts[1], Elts[2])) |
| 3845 | return error(ID.Loc, "invalid operands to shufflevector" ); |
| 3846 | SmallVector<int, 16> Mask; |
| 3847 | ShuffleVectorInst::getShuffleMask(cast<Constant>(Elts[2]), Mask); |
| 3848 | ID.ConstantVal = ConstantExpr::getShuffleVector(Elts[0], Elts[1], Mask); |
| 3849 | } else if (Opc == Instruction::ExtractElement) { |
| 3850 | if (Elts.size() != 2) |
| 3851 | return error(ID.Loc, "expected two operands to extractelement" ); |
| 3852 | if (!ExtractElementInst::isValidOperands(Elts[0], Elts[1])) |
| 3853 | return error(ID.Loc, "invalid extractelement operands" ); |
| 3854 | ID.ConstantVal = ConstantExpr::getExtractElement(Elts[0], Elts[1]); |
| 3855 | } else { |
| 3856 | assert(Opc == Instruction::InsertElement && "Unknown opcode" ); |
| 3857 | if (Elts.size() != 3) |
| 3858 | return error(ID.Loc, "expected three operands to insertelement" ); |
| 3859 | if (!InsertElementInst::isValidOperands(Elts[0], Elts[1], Elts[2])) |
| 3860 | return error(ID.Loc, "invalid insertelement operands" ); |
| 3861 | ID.ConstantVal = |
| 3862 | ConstantExpr::getInsertElement(Elts[0], Elts[1],Elts[2]); |
| 3863 | } |
| 3864 | |
| 3865 | ID.Kind = ValID::t_Constant; |
| 3866 | return false; |
| 3867 | } |
| 3868 | } |
| 3869 | |
| 3870 | Lex.Lex(); |
| 3871 | return false; |
| 3872 | } |
| 3873 | |
| 3874 | /// parseGlobalValue - parse a global value with the specified type. |
| 3875 | bool LLParser::parseGlobalValue(Type *Ty, Constant *&C) { |
| 3876 | C = nullptr; |
| 3877 | ValID ID; |
| 3878 | Value *V = nullptr; |
| 3879 | bool Parsed = parseValID(ID) || |
| 3880 | convertValIDToValue(Ty, ID, V, nullptr, /*IsCall=*/false); |
| 3881 | if (V && !(C = dyn_cast<Constant>(V))) |
| 3882 | return error(ID.Loc, "global values must be constants" ); |
| 3883 | return Parsed; |
| 3884 | } |
| 3885 | |
| 3886 | bool LLParser::parseGlobalTypeAndValue(Constant *&V) { |
| 3887 | Type *Ty = nullptr; |
| 3888 | return parseType(Ty) || parseGlobalValue(Ty, V); |
| 3889 | } |
| 3890 | |
| 3891 | bool LLParser::parseOptionalComdat(StringRef GlobalName, Comdat *&C) { |
| 3892 | C = nullptr; |
| 3893 | |
| 3894 | LocTy KwLoc = Lex.getLoc(); |
| 3895 | if (!EatIfPresent(lltok::kw_comdat)) |
| 3896 | return false; |
| 3897 | |
| 3898 | if (EatIfPresent(lltok::lparen)) { |
| 3899 | if (Lex.getKind() != lltok::ComdatVar) |
| 3900 | return tokError("expected comdat variable" ); |
| 3901 | C = getComdat(Lex.getStrVal(), Lex.getLoc()); |
| 3902 | Lex.Lex(); |
| 3903 | if (parseToken(lltok::rparen, "expected ')' after comdat var" )) |
| 3904 | return true; |
| 3905 | } else { |
| 3906 | if (GlobalName.empty()) |
| 3907 | return tokError("comdat cannot be unnamed" ); |
| 3908 | C = getComdat(std::string(GlobalName), KwLoc); |
| 3909 | } |
| 3910 | |
| 3911 | return false; |
| 3912 | } |
| 3913 | |
| 3914 | /// parseGlobalValueVector |
| 3915 | /// ::= /*empty*/ |
| 3916 | /// ::= [inrange] TypeAndValue (',' [inrange] TypeAndValue)* |
| 3917 | bool LLParser::parseGlobalValueVector(SmallVectorImpl<Constant *> &Elts, |
| 3918 | Optional<unsigned> *InRangeOp) { |
| 3919 | // Empty list. |
| 3920 | if (Lex.getKind() == lltok::rbrace || |
| 3921 | Lex.getKind() == lltok::rsquare || |
| 3922 | Lex.getKind() == lltok::greater || |
| 3923 | Lex.getKind() == lltok::rparen) |
| 3924 | return false; |
| 3925 | |
| 3926 | do { |
| 3927 | if (InRangeOp && !*InRangeOp && EatIfPresent(lltok::kw_inrange)) |
| 3928 | *InRangeOp = Elts.size(); |
| 3929 | |
| 3930 | Constant *C; |
| 3931 | if (parseGlobalTypeAndValue(C)) |
| 3932 | return true; |
| 3933 | Elts.push_back(C); |
| 3934 | } while (EatIfPresent(lltok::comma)); |
| 3935 | |
| 3936 | return false; |
| 3937 | } |
| 3938 | |
| 3939 | bool LLParser::parseMDTuple(MDNode *&MD, bool IsDistinct) { |
| 3940 | SmallVector<Metadata *, 16> Elts; |
| 3941 | if (parseMDNodeVector(Elts)) |
| 3942 | return true; |
| 3943 | |
| 3944 | MD = (IsDistinct ? MDTuple::getDistinct : MDTuple::get)(Context, Elts); |
| 3945 | return false; |
| 3946 | } |
| 3947 | |
| 3948 | /// MDNode: |
| 3949 | /// ::= !{ ... } |
| 3950 | /// ::= !7 |
| 3951 | /// ::= !DILocation(...) |
| 3952 | bool LLParser::parseMDNode(MDNode *&N) { |
| 3953 | if (Lex.getKind() == lltok::MetadataVar) |
| 3954 | return parseSpecializedMDNode(N); |
| 3955 | |
| 3956 | return parseToken(lltok::exclaim, "expected '!' here" ) || parseMDNodeTail(N); |
| 3957 | } |
| 3958 | |
| 3959 | bool LLParser::parseMDNodeTail(MDNode *&N) { |
| 3960 | // !{ ... } |
| 3961 | if (Lex.getKind() == lltok::lbrace) |
| 3962 | return parseMDTuple(N); |
| 3963 | |
| 3964 | // !42 |
| 3965 | return parseMDNodeID(N); |
| 3966 | } |
| 3967 | |
| 3968 | namespace { |
| 3969 | |
| 3970 | /// Structure to represent an optional metadata field. |
| 3971 | template <class FieldTy> struct MDFieldImpl { |
| 3972 | typedef MDFieldImpl ImplTy; |
| 3973 | FieldTy Val; |
| 3974 | bool Seen; |
| 3975 | |
| 3976 | void assign(FieldTy Val) { |
| 3977 | Seen = true; |
| 3978 | this->Val = std::move(Val); |
| 3979 | } |
| 3980 | |
| 3981 | explicit MDFieldImpl(FieldTy Default) |
| 3982 | : Val(std::move(Default)), Seen(false) {} |
| 3983 | }; |
| 3984 | |
| 3985 | /// Structure to represent an optional metadata field that |
| 3986 | /// can be of either type (A or B) and encapsulates the |
| 3987 | /// MD<typeofA>Field and MD<typeofB>Field structs, so not |
| 3988 | /// to reimplement the specifics for representing each Field. |
| 3989 | template <class FieldTypeA, class FieldTypeB> struct MDEitherFieldImpl { |
| 3990 | typedef MDEitherFieldImpl<FieldTypeA, FieldTypeB> ImplTy; |
| 3991 | FieldTypeA A; |
| 3992 | FieldTypeB B; |
| 3993 | bool Seen; |
| 3994 | |
| 3995 | enum { |
| 3996 | IsInvalid = 0, |
| 3997 | IsTypeA = 1, |
| 3998 | IsTypeB = 2 |
| 3999 | } WhatIs; |
| 4000 | |
| 4001 | void assign(FieldTypeA A) { |
| 4002 | Seen = true; |
| 4003 | this->A = std::move(A); |
| 4004 | WhatIs = IsTypeA; |
| 4005 | } |
| 4006 | |
| 4007 | void assign(FieldTypeB B) { |
| 4008 | Seen = true; |
| 4009 | this->B = std::move(B); |
| 4010 | WhatIs = IsTypeB; |
| 4011 | } |
| 4012 | |
| 4013 | explicit MDEitherFieldImpl(FieldTypeA DefaultA, FieldTypeB DefaultB) |
| 4014 | : A(std::move(DefaultA)), B(std::move(DefaultB)), Seen(false), |
| 4015 | WhatIs(IsInvalid) {} |
| 4016 | }; |
| 4017 | |
| 4018 | struct MDUnsignedField : public MDFieldImpl<uint64_t> { |
| 4019 | uint64_t Max; |
| 4020 | |
| 4021 | MDUnsignedField(uint64_t Default = 0, uint64_t Max = UINT64_MAX) |
| 4022 | : ImplTy(Default), Max(Max) {} |
| 4023 | }; |
| 4024 | |
| 4025 | struct LineField : public MDUnsignedField { |
| 4026 | LineField() : MDUnsignedField(0, UINT32_MAX) {} |
| 4027 | }; |
| 4028 | |
| 4029 | struct ColumnField : public MDUnsignedField { |
| 4030 | ColumnField() : MDUnsignedField(0, UINT16_MAX) {} |
| 4031 | }; |
| 4032 | |
| 4033 | struct DwarfTagField : public MDUnsignedField { |
| 4034 | DwarfTagField() : MDUnsignedField(0, dwarf::DW_TAG_hi_user) {} |
| 4035 | DwarfTagField(dwarf::Tag DefaultTag) |
| 4036 | : MDUnsignedField(DefaultTag, dwarf::DW_TAG_hi_user) {} |
| 4037 | }; |
| 4038 | |
| 4039 | struct DwarfMacinfoTypeField : public MDUnsignedField { |
| 4040 | DwarfMacinfoTypeField() : MDUnsignedField(0, dwarf::DW_MACINFO_vendor_ext) {} |
| 4041 | DwarfMacinfoTypeField(dwarf::MacinfoRecordType DefaultType) |
| 4042 | : MDUnsignedField(DefaultType, dwarf::DW_MACINFO_vendor_ext) {} |
| 4043 | }; |
| 4044 | |
| 4045 | struct DwarfAttEncodingField : public MDUnsignedField { |
| 4046 | DwarfAttEncodingField() : MDUnsignedField(0, dwarf::DW_ATE_hi_user) {} |
| 4047 | }; |
| 4048 | |
| 4049 | struct DwarfVirtualityField : public MDUnsignedField { |
| 4050 | DwarfVirtualityField() : MDUnsignedField(0, dwarf::DW_VIRTUALITY_max) {} |
| 4051 | }; |
| 4052 | |
| 4053 | struct DwarfLangField : public MDUnsignedField { |
| 4054 | DwarfLangField() : MDUnsignedField(0, dwarf::DW_LANG_hi_user) {} |
| 4055 | }; |
| 4056 | |
| 4057 | struct DwarfCCField : public MDUnsignedField { |
| 4058 | DwarfCCField() : MDUnsignedField(0, dwarf::DW_CC_hi_user) {} |
| 4059 | }; |
| 4060 | |
| 4061 | struct EmissionKindField : public MDUnsignedField { |
| 4062 | EmissionKindField() : MDUnsignedField(0, DICompileUnit::LastEmissionKind) {} |
| 4063 | }; |
| 4064 | |
| 4065 | struct NameTableKindField : public MDUnsignedField { |
| 4066 | NameTableKindField() |
| 4067 | : MDUnsignedField( |
| 4068 | 0, (unsigned) |
| 4069 | DICompileUnit::DebugNameTableKind::LastDebugNameTableKind) {} |
| 4070 | }; |
| 4071 | |
| 4072 | struct DIFlagField : public MDFieldImpl<DINode::DIFlags> { |
| 4073 | DIFlagField() : MDFieldImpl(DINode::FlagZero) {} |
| 4074 | }; |
| 4075 | |
| 4076 | struct DISPFlagField : public MDFieldImpl<DISubprogram::DISPFlags> { |
| 4077 | DISPFlagField() : MDFieldImpl(DISubprogram::SPFlagZero) {} |
| 4078 | }; |
| 4079 | |
| 4080 | struct MDAPSIntField : public MDFieldImpl<APSInt> { |
| 4081 | MDAPSIntField() : ImplTy(APSInt()) {} |
| 4082 | }; |
| 4083 | |
| 4084 | struct MDSignedField : public MDFieldImpl<int64_t> { |
| 4085 | int64_t Min; |
| 4086 | int64_t Max; |
| 4087 | |
| 4088 | MDSignedField(int64_t Default = 0) |
| 4089 | : ImplTy(Default), Min(INT64_MIN), Max(INT64_MAX) {} |
| 4090 | MDSignedField(int64_t Default, int64_t Min, int64_t Max) |
| 4091 | : ImplTy(Default), Min(Min), Max(Max) {} |
| 4092 | }; |
| 4093 | |
| 4094 | struct MDBoolField : public MDFieldImpl<bool> { |
| 4095 | MDBoolField(bool Default = false) : ImplTy(Default) {} |
| 4096 | }; |
| 4097 | |
| 4098 | struct MDField : public MDFieldImpl<Metadata *> { |
| 4099 | bool AllowNull; |
| 4100 | |
| 4101 | MDField(bool AllowNull = true) : ImplTy(nullptr), AllowNull(AllowNull) {} |
| 4102 | }; |
| 4103 | |
| 4104 | struct MDConstant : public MDFieldImpl<ConstantAsMetadata *> { |
| 4105 | MDConstant() : ImplTy(nullptr) {} |
| 4106 | }; |
| 4107 | |
| 4108 | struct MDStringField : public MDFieldImpl<MDString *> { |
| 4109 | bool AllowEmpty; |
| 4110 | MDStringField(bool AllowEmpty = true) |
| 4111 | : ImplTy(nullptr), AllowEmpty(AllowEmpty) {} |
| 4112 | }; |
| 4113 | |
| 4114 | struct MDFieldList : public MDFieldImpl<SmallVector<Metadata *, 4>> { |
| 4115 | MDFieldList() : ImplTy(SmallVector<Metadata *, 4>()) {} |
| 4116 | }; |
| 4117 | |
| 4118 | struct ChecksumKindField : public MDFieldImpl<DIFile::ChecksumKind> { |
| 4119 | ChecksumKindField(DIFile::ChecksumKind CSKind) : ImplTy(CSKind) {} |
| 4120 | }; |
| 4121 | |
| 4122 | struct MDSignedOrMDField : MDEitherFieldImpl<MDSignedField, MDField> { |
| 4123 | MDSignedOrMDField(int64_t Default = 0, bool AllowNull = true) |
| 4124 | : ImplTy(MDSignedField(Default), MDField(AllowNull)) {} |
| 4125 | |
| 4126 | MDSignedOrMDField(int64_t Default, int64_t Min, int64_t Max, |
| 4127 | bool AllowNull = true) |
| 4128 | : ImplTy(MDSignedField(Default, Min, Max), MDField(AllowNull)) {} |
| 4129 | |
| 4130 | bool isMDSignedField() const { return WhatIs == IsTypeA; } |
| 4131 | bool isMDField() const { return WhatIs == IsTypeB; } |
| 4132 | int64_t getMDSignedValue() const { |
| 4133 | assert(isMDSignedField() && "Wrong field type" ); |
| 4134 | return A.Val; |
| 4135 | } |
| 4136 | Metadata *getMDFieldValue() const { |
| 4137 | assert(isMDField() && "Wrong field type" ); |
| 4138 | return B.Val; |
| 4139 | } |
| 4140 | }; |
| 4141 | |
| 4142 | struct MDSignedOrUnsignedField |
| 4143 | : MDEitherFieldImpl<MDSignedField, MDUnsignedField> { |
| 4144 | MDSignedOrUnsignedField() : ImplTy(MDSignedField(0), MDUnsignedField(0)) {} |
| 4145 | |
| 4146 | bool isMDSignedField() const { return WhatIs == IsTypeA; } |
| 4147 | bool isMDUnsignedField() const { return WhatIs == IsTypeB; } |
| 4148 | int64_t getMDSignedValue() const { |
| 4149 | assert(isMDSignedField() && "Wrong field type" ); |
| 4150 | return A.Val; |
| 4151 | } |
| 4152 | uint64_t getMDUnsignedValue() const { |
| 4153 | assert(isMDUnsignedField() && "Wrong field type" ); |
| 4154 | return B.Val; |
| 4155 | } |
| 4156 | }; |
| 4157 | |
| 4158 | } // end anonymous namespace |
| 4159 | |
| 4160 | namespace llvm { |
| 4161 | |
| 4162 | template <> |
| 4163 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, MDAPSIntField &Result) { |
| 4164 | if (Lex.getKind() != lltok::APSInt) |
| 4165 | return tokError("expected integer" ); |
| 4166 | |
| 4167 | Result.assign(Lex.getAPSIntVal()); |
| 4168 | Lex.Lex(); |
| 4169 | return false; |
| 4170 | } |
| 4171 | |
| 4172 | template <> |
| 4173 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, |
| 4174 | MDUnsignedField &Result) { |
| 4175 | if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned()) |
| 4176 | return tokError("expected unsigned integer" ); |
| 4177 | |
| 4178 | auto &U = Lex.getAPSIntVal(); |
| 4179 | if (U.ugt(Result.Max)) |
| 4180 | return tokError("value for '" + Name + "' too large, limit is " + |
| 4181 | Twine(Result.Max)); |
| 4182 | Result.assign(U.getZExtValue()); |
| 4183 | assert(Result.Val <= Result.Max && "Expected value in range" ); |
| 4184 | Lex.Lex(); |
| 4185 | return false; |
| 4186 | } |
| 4187 | |
| 4188 | template <> |
| 4189 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, LineField &Result) { |
| 4190 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); |
| 4191 | } |
| 4192 | template <> |
| 4193 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, ColumnField &Result) { |
| 4194 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); |
| 4195 | } |
| 4196 | |
| 4197 | template <> |
| 4198 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, DwarfTagField &Result) { |
| 4199 | if (Lex.getKind() == lltok::APSInt) |
| 4200 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); |
| 4201 | |
| 4202 | if (Lex.getKind() != lltok::DwarfTag) |
| 4203 | return tokError("expected DWARF tag" ); |
| 4204 | |
| 4205 | unsigned Tag = dwarf::getTag(Lex.getStrVal()); |
| 4206 | if (Tag == dwarf::DW_TAG_invalid) |
| 4207 | return tokError("invalid DWARF tag" + Twine(" '" ) + Lex.getStrVal() + "'" ); |
| 4208 | assert(Tag <= Result.Max && "Expected valid DWARF tag" ); |
| 4209 | |
| 4210 | Result.assign(Tag); |
| 4211 | Lex.Lex(); |
| 4212 | return false; |
| 4213 | } |
| 4214 | |
| 4215 | template <> |
| 4216 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, |
| 4217 | DwarfMacinfoTypeField &Result) { |
| 4218 | if (Lex.getKind() == lltok::APSInt) |
| 4219 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); |
| 4220 | |
| 4221 | if (Lex.getKind() != lltok::DwarfMacinfo) |
| 4222 | return tokError("expected DWARF macinfo type" ); |
| 4223 | |
| 4224 | unsigned Macinfo = dwarf::getMacinfo(Lex.getStrVal()); |
| 4225 | if (Macinfo == dwarf::DW_MACINFO_invalid) |
| 4226 | return tokError("invalid DWARF macinfo type" + Twine(" '" ) + |
| 4227 | Lex.getStrVal() + "'" ); |
| 4228 | assert(Macinfo <= Result.Max && "Expected valid DWARF macinfo type" ); |
| 4229 | |
| 4230 | Result.assign(Macinfo); |
| 4231 | Lex.Lex(); |
| 4232 | return false; |
| 4233 | } |
| 4234 | |
| 4235 | template <> |
| 4236 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, |
| 4237 | DwarfVirtualityField &Result) { |
| 4238 | if (Lex.getKind() == lltok::APSInt) |
| 4239 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); |
| 4240 | |
| 4241 | if (Lex.getKind() != lltok::DwarfVirtuality) |
| 4242 | return tokError("expected DWARF virtuality code" ); |
| 4243 | |
| 4244 | unsigned Virtuality = dwarf::getVirtuality(Lex.getStrVal()); |
| 4245 | if (Virtuality == dwarf::DW_VIRTUALITY_invalid) |
| 4246 | return tokError("invalid DWARF virtuality code" + Twine(" '" ) + |
| 4247 | Lex.getStrVal() + "'" ); |
| 4248 | assert(Virtuality <= Result.Max && "Expected valid DWARF virtuality code" ); |
| 4249 | Result.assign(Virtuality); |
| 4250 | Lex.Lex(); |
| 4251 | return false; |
| 4252 | } |
| 4253 | |
| 4254 | template <> |
| 4255 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, DwarfLangField &Result) { |
| 4256 | if (Lex.getKind() == lltok::APSInt) |
| 4257 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); |
| 4258 | |
| 4259 | if (Lex.getKind() != lltok::DwarfLang) |
| 4260 | return tokError("expected DWARF language" ); |
| 4261 | |
| 4262 | unsigned Lang = dwarf::getLanguage(Lex.getStrVal()); |
| 4263 | if (!Lang) |
| 4264 | return tokError("invalid DWARF language" + Twine(" '" ) + Lex.getStrVal() + |
| 4265 | "'" ); |
| 4266 | assert(Lang <= Result.Max && "Expected valid DWARF language" ); |
| 4267 | Result.assign(Lang); |
| 4268 | Lex.Lex(); |
| 4269 | return false; |
| 4270 | } |
| 4271 | |
| 4272 | template <> |
| 4273 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, DwarfCCField &Result) { |
| 4274 | if (Lex.getKind() == lltok::APSInt) |
| 4275 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); |
| 4276 | |
| 4277 | if (Lex.getKind() != lltok::DwarfCC) |
| 4278 | return tokError("expected DWARF calling convention" ); |
| 4279 | |
| 4280 | unsigned CC = dwarf::getCallingConvention(Lex.getStrVal()); |
| 4281 | if (!CC) |
| 4282 | return tokError("invalid DWARF calling convention" + Twine(" '" ) + |
| 4283 | Lex.getStrVal() + "'" ); |
| 4284 | assert(CC <= Result.Max && "Expected valid DWARF calling convention" ); |
| 4285 | Result.assign(CC); |
| 4286 | Lex.Lex(); |
| 4287 | return false; |
| 4288 | } |
| 4289 | |
| 4290 | template <> |
| 4291 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, |
| 4292 | EmissionKindField &Result) { |
| 4293 | if (Lex.getKind() == lltok::APSInt) |
| 4294 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); |
| 4295 | |
| 4296 | if (Lex.getKind() != lltok::EmissionKind) |
| 4297 | return tokError("expected emission kind" ); |
| 4298 | |
| 4299 | auto Kind = DICompileUnit::getEmissionKind(Lex.getStrVal()); |
| 4300 | if (!Kind) |
| 4301 | return tokError("invalid emission kind" + Twine(" '" ) + Lex.getStrVal() + |
| 4302 | "'" ); |
| 4303 | assert(*Kind <= Result.Max && "Expected valid emission kind" ); |
| 4304 | Result.assign(*Kind); |
| 4305 | Lex.Lex(); |
| 4306 | return false; |
| 4307 | } |
| 4308 | |
| 4309 | template <> |
| 4310 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, |
| 4311 | NameTableKindField &Result) { |
| 4312 | if (Lex.getKind() == lltok::APSInt) |
| 4313 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); |
| 4314 | |
| 4315 | if (Lex.getKind() != lltok::NameTableKind) |
| 4316 | return tokError("expected nameTable kind" ); |
| 4317 | |
| 4318 | auto Kind = DICompileUnit::getNameTableKind(Lex.getStrVal()); |
| 4319 | if (!Kind) |
| 4320 | return tokError("invalid nameTable kind" + Twine(" '" ) + Lex.getStrVal() + |
| 4321 | "'" ); |
| 4322 | assert(((unsigned)*Kind) <= Result.Max && "Expected valid nameTable kind" ); |
| 4323 | Result.assign((unsigned)*Kind); |
| 4324 | Lex.Lex(); |
| 4325 | return false; |
| 4326 | } |
| 4327 | |
| 4328 | template <> |
| 4329 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, |
| 4330 | DwarfAttEncodingField &Result) { |
| 4331 | if (Lex.getKind() == lltok::APSInt) |
| 4332 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); |
| 4333 | |
| 4334 | if (Lex.getKind() != lltok::DwarfAttEncoding) |
| 4335 | return tokError("expected DWARF type attribute encoding" ); |
| 4336 | |
| 4337 | unsigned Encoding = dwarf::getAttributeEncoding(Lex.getStrVal()); |
| 4338 | if (!Encoding) |
| 4339 | return tokError("invalid DWARF type attribute encoding" + Twine(" '" ) + |
| 4340 | Lex.getStrVal() + "'" ); |
| 4341 | assert(Encoding <= Result.Max && "Expected valid DWARF language" ); |
| 4342 | Result.assign(Encoding); |
| 4343 | Lex.Lex(); |
| 4344 | return false; |
| 4345 | } |
| 4346 | |
| 4347 | /// DIFlagField |
| 4348 | /// ::= uint32 |
| 4349 | /// ::= DIFlagVector |
| 4350 | /// ::= DIFlagVector '|' DIFlagFwdDecl '|' uint32 '|' DIFlagPublic |
| 4351 | template <> |
| 4352 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, DIFlagField &Result) { |
| 4353 | |
| 4354 | // parser for a single flag. |
| 4355 | auto parseFlag = [&](DINode::DIFlags &Val) { |
| 4356 | if (Lex.getKind() == lltok::APSInt && !Lex.getAPSIntVal().isSigned()) { |
| 4357 | uint32_t TempVal = static_cast<uint32_t>(Val); |
| 4358 | bool Res = parseUInt32(TempVal); |
| 4359 | Val = static_cast<DINode::DIFlags>(TempVal); |
| 4360 | return Res; |
| 4361 | } |
| 4362 | |
| 4363 | if (Lex.getKind() != lltok::DIFlag) |
| 4364 | return tokError("expected debug info flag" ); |
| 4365 | |
| 4366 | Val = DINode::getFlag(Lex.getStrVal()); |
| 4367 | if (!Val) |
| 4368 | return tokError(Twine("invalid debug info flag flag '" ) + |
| 4369 | Lex.getStrVal() + "'" ); |
| 4370 | Lex.Lex(); |
| 4371 | return false; |
| 4372 | }; |
| 4373 | |
| 4374 | // parse the flags and combine them together. |
| 4375 | DINode::DIFlags Combined = DINode::FlagZero; |
| 4376 | do { |
| 4377 | DINode::DIFlags Val; |
| 4378 | if (parseFlag(Val)) |
| 4379 | return true; |
| 4380 | Combined |= Val; |
| 4381 | } while (EatIfPresent(lltok::bar)); |
| 4382 | |
| 4383 | Result.assign(Combined); |
| 4384 | return false; |
| 4385 | } |
| 4386 | |
| 4387 | /// DISPFlagField |
| 4388 | /// ::= uint32 |
| 4389 | /// ::= DISPFlagVector |
| 4390 | /// ::= DISPFlagVector '|' DISPFlag* '|' uint32 |
| 4391 | template <> |
| 4392 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, DISPFlagField &Result) { |
| 4393 | |
| 4394 | // parser for a single flag. |
| 4395 | auto parseFlag = [&](DISubprogram::DISPFlags &Val) { |
| 4396 | if (Lex.getKind() == lltok::APSInt && !Lex.getAPSIntVal().isSigned()) { |
| 4397 | uint32_t TempVal = static_cast<uint32_t>(Val); |
| 4398 | bool Res = parseUInt32(TempVal); |
| 4399 | Val = static_cast<DISubprogram::DISPFlags>(TempVal); |
| 4400 | return Res; |
| 4401 | } |
| 4402 | |
| 4403 | if (Lex.getKind() != lltok::DISPFlag) |
| 4404 | return tokError("expected debug info flag" ); |
| 4405 | |
| 4406 | Val = DISubprogram::getFlag(Lex.getStrVal()); |
| 4407 | if (!Val) |
| 4408 | return tokError(Twine("invalid subprogram debug info flag '" ) + |
| 4409 | Lex.getStrVal() + "'" ); |
| 4410 | Lex.Lex(); |
| 4411 | return false; |
| 4412 | }; |
| 4413 | |
| 4414 | // parse the flags and combine them together. |
| 4415 | DISubprogram::DISPFlags Combined = DISubprogram::SPFlagZero; |
| 4416 | do { |
| 4417 | DISubprogram::DISPFlags Val; |
| 4418 | if (parseFlag(Val)) |
| 4419 | return true; |
| 4420 | Combined |= Val; |
| 4421 | } while (EatIfPresent(lltok::bar)); |
| 4422 | |
| 4423 | Result.assign(Combined); |
| 4424 | return false; |
| 4425 | } |
| 4426 | |
| 4427 | template <> |
| 4428 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, MDSignedField &Result) { |
| 4429 | if (Lex.getKind() != lltok::APSInt) |
| 4430 | return tokError("expected signed integer" ); |
| 4431 | |
| 4432 | auto &S = Lex.getAPSIntVal(); |
| 4433 | if (S < Result.Min) |
| 4434 | return tokError("value for '" + Name + "' too small, limit is " + |
| 4435 | Twine(Result.Min)); |
| 4436 | if (S > Result.Max) |
| 4437 | return tokError("value for '" + Name + "' too large, limit is " + |
| 4438 | Twine(Result.Max)); |
| 4439 | Result.assign(S.getExtValue()); |
| 4440 | assert(Result.Val >= Result.Min && "Expected value in range" ); |
| 4441 | assert(Result.Val <= Result.Max && "Expected value in range" ); |
| 4442 | Lex.Lex(); |
| 4443 | return false; |
| 4444 | } |
| 4445 | |
| 4446 | template <> |
| 4447 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, MDBoolField &Result) { |
| 4448 | switch (Lex.getKind()) { |
| 4449 | default: |
| 4450 | return tokError("expected 'true' or 'false'" ); |
| 4451 | case lltok::kw_true: |
| 4452 | Result.assign(true); |
| 4453 | break; |
| 4454 | case lltok::kw_false: |
| 4455 | Result.assign(false); |
| 4456 | break; |
| 4457 | } |
| 4458 | Lex.Lex(); |
| 4459 | return false; |
| 4460 | } |
| 4461 | |
| 4462 | template <> |
| 4463 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, MDField &Result) { |
| 4464 | if (Lex.getKind() == lltok::kw_null) { |
| 4465 | if (!Result.AllowNull) |
| 4466 | return tokError("'" + Name + "' cannot be null" ); |
| 4467 | Lex.Lex(); |
| 4468 | Result.assign(nullptr); |
| 4469 | return false; |
| 4470 | } |
| 4471 | |
| 4472 | Metadata *MD; |
| 4473 | if (parseMetadata(MD, nullptr)) |
| 4474 | return true; |
| 4475 | |
| 4476 | Result.assign(MD); |
| 4477 | return false; |
| 4478 | } |
| 4479 | |
| 4480 | template <> |
| 4481 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, |
| 4482 | MDSignedOrMDField &Result) { |
| 4483 | // Try to parse a signed int. |
| 4484 | if (Lex.getKind() == lltok::APSInt) { |
| 4485 | MDSignedField Res = Result.A; |
| 4486 | if (!parseMDField(Loc, Name, Res)) { |
| 4487 | Result.assign(Res); |
| 4488 | return false; |
| 4489 | } |
| 4490 | return true; |
| 4491 | } |
| 4492 | |
| 4493 | // Otherwise, try to parse as an MDField. |
| 4494 | MDField Res = Result.B; |
| 4495 | if (!parseMDField(Loc, Name, Res)) { |
| 4496 | Result.assign(Res); |
| 4497 | return false; |
| 4498 | } |
| 4499 | |
| 4500 | return true; |
| 4501 | } |
| 4502 | |
| 4503 | template <> |
| 4504 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, MDStringField &Result) { |
| 4505 | LocTy ValueLoc = Lex.getLoc(); |
| 4506 | std::string S; |
| 4507 | if (parseStringConstant(S)) |
| 4508 | return true; |
| 4509 | |
| 4510 | if (!Result.AllowEmpty && S.empty()) |
| 4511 | return error(ValueLoc, "'" + Name + "' cannot be empty" ); |
| 4512 | |
| 4513 | Result.assign(S.empty() ? nullptr : MDString::get(Context, S)); |
| 4514 | return false; |
| 4515 | } |
| 4516 | |
| 4517 | template <> |
| 4518 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, MDFieldList &Result) { |
| 4519 | SmallVector<Metadata *, 4> MDs; |
| 4520 | if (parseMDNodeVector(MDs)) |
| 4521 | return true; |
| 4522 | |
| 4523 | Result.assign(std::move(MDs)); |
| 4524 | return false; |
| 4525 | } |
| 4526 | |
| 4527 | template <> |
| 4528 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, |
| 4529 | ChecksumKindField &Result) { |
| 4530 | Optional<DIFile::ChecksumKind> CSKind = |
| 4531 | DIFile::getChecksumKind(Lex.getStrVal()); |
| 4532 | |
| 4533 | if (Lex.getKind() != lltok::ChecksumKind || !CSKind) |
| 4534 | return tokError("invalid checksum kind" + Twine(" '" ) + Lex.getStrVal() + |
| 4535 | "'" ); |
| 4536 | |
| 4537 | Result.assign(*CSKind); |
| 4538 | Lex.Lex(); |
| 4539 | return false; |
| 4540 | } |
| 4541 | |
| 4542 | } // end namespace llvm |
| 4543 | |
| 4544 | template <class ParserTy> |
| 4545 | bool LLParser::parseMDFieldsImplBody(ParserTy ParseField) { |
| 4546 | do { |
| 4547 | if (Lex.getKind() != lltok::LabelStr) |
| 4548 | return tokError("expected field label here" ); |
| 4549 | |
| 4550 | if (ParseField()) |
| 4551 | return true; |
| 4552 | } while (EatIfPresent(lltok::comma)); |
| 4553 | |
| 4554 | return false; |
| 4555 | } |
| 4556 | |
| 4557 | template <class ParserTy> |
| 4558 | bool LLParser::parseMDFieldsImpl(ParserTy ParseField, LocTy &ClosingLoc) { |
| 4559 | assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name" ); |
| 4560 | Lex.Lex(); |
| 4561 | |
| 4562 | if (parseToken(lltok::lparen, "expected '(' here" )) |
| 4563 | return true; |
| 4564 | if (Lex.getKind() != lltok::rparen) |
| 4565 | if (parseMDFieldsImplBody(ParseField)) |
| 4566 | return true; |
| 4567 | |
| 4568 | ClosingLoc = Lex.getLoc(); |
| 4569 | return parseToken(lltok::rparen, "expected ')' here" ); |
| 4570 | } |
| 4571 | |
| 4572 | template <class FieldTy> |
| 4573 | bool LLParser::parseMDField(StringRef Name, FieldTy &Result) { |
| 4574 | if (Result.Seen) |
| 4575 | return tokError("field '" + Name + "' cannot be specified more than once" ); |
| 4576 | |
| 4577 | LocTy Loc = Lex.getLoc(); |
| 4578 | Lex.Lex(); |
| 4579 | return parseMDField(Loc, Name, Result); |
| 4580 | } |
| 4581 | |
| 4582 | bool LLParser::parseSpecializedMDNode(MDNode *&N, bool IsDistinct) { |
| 4583 | assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name" ); |
| 4584 | |
| 4585 | #define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS) \ |
| 4586 | if (Lex.getStrVal() == #CLASS) \ |
| 4587 | return parse##CLASS(N, IsDistinct); |
| 4588 | #include "llvm/IR/Metadata.def" |
| 4589 | |
| 4590 | return tokError("expected metadata type" ); |
| 4591 | } |
| 4592 | |
| 4593 | #define DECLARE_FIELD(NAME, TYPE, INIT) TYPE NAME INIT |
| 4594 | #define NOP_FIELD(NAME, TYPE, INIT) |
| 4595 | #define REQUIRE_FIELD(NAME, TYPE, INIT) \ |
| 4596 | if (!NAME.Seen) \ |
| 4597 | return error(ClosingLoc, "missing required field '" #NAME "'"); |
| 4598 | #define PARSE_MD_FIELD(NAME, TYPE, DEFAULT) \ |
| 4599 | if (Lex.getStrVal() == #NAME) \ |
| 4600 | return parseMDField(#NAME, NAME); |
| 4601 | #define PARSE_MD_FIELDS() \ |
| 4602 | VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) \ |
| 4603 | do { \ |
| 4604 | LocTy ClosingLoc; \ |
| 4605 | if (parseMDFieldsImpl( \ |
| 4606 | [&]() -> bool { \ |
| 4607 | VISIT_MD_FIELDS(PARSE_MD_FIELD, PARSE_MD_FIELD) \ |
| 4608 | return tokError(Twine("invalid field '") + Lex.getStrVal() + \ |
| 4609 | "'"); \ |
| 4610 | }, \ |
| 4611 | ClosingLoc)) \ |
| 4612 | return true; \ |
| 4613 | VISIT_MD_FIELDS(NOP_FIELD, REQUIRE_FIELD) \ |
| 4614 | } while (false) |
| 4615 | #define GET_OR_DISTINCT(CLASS, ARGS) \ |
| 4616 | (IsDistinct ? CLASS::getDistinct ARGS : CLASS::get ARGS) |
| 4617 | |
| 4618 | /// parseDILocationFields: |
| 4619 | /// ::= !DILocation(line: 43, column: 8, scope: !5, inlinedAt: !6, |
| 4620 | /// isImplicitCode: true) |
| 4621 | bool LLParser::parseDILocation(MDNode *&Result, bool IsDistinct) { |
| 4622 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4623 | OPTIONAL(line, LineField, ); \ |
| 4624 | OPTIONAL(column, ColumnField, ); \ |
| 4625 | REQUIRED(scope, MDField, (/* AllowNull */ false)); \ |
| 4626 | OPTIONAL(inlinedAt, MDField, ); \ |
| 4627 | OPTIONAL(isImplicitCode, MDBoolField, (false)); |
| 4628 | PARSE_MD_FIELDS(); |
| 4629 | #undef VISIT_MD_FIELDS |
| 4630 | |
| 4631 | Result = |
| 4632 | GET_OR_DISTINCT(DILocation, (Context, line.Val, column.Val, scope.Val, |
| 4633 | inlinedAt.Val, isImplicitCode.Val)); |
| 4634 | return false; |
| 4635 | } |
| 4636 | |
| 4637 | /// parseGenericDINode: |
| 4638 | /// ::= !GenericDINode(tag: 15, header: "...", operands: {...}) |
| 4639 | bool LLParser::parseGenericDINode(MDNode *&Result, bool IsDistinct) { |
| 4640 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4641 | REQUIRED(tag, DwarfTagField, ); \ |
| 4642 | OPTIONAL(, MDStringField, ); \ |
| 4643 | OPTIONAL(operands, MDFieldList, ); |
| 4644 | PARSE_MD_FIELDS(); |
| 4645 | #undef VISIT_MD_FIELDS |
| 4646 | |
| 4647 | Result = GET_OR_DISTINCT(GenericDINode, |
| 4648 | (Context, tag.Val, header.Val, operands.Val)); |
| 4649 | return false; |
| 4650 | } |
| 4651 | |
| 4652 | /// parseDISubrange: |
| 4653 | /// ::= !DISubrange(count: 30, lowerBound: 2) |
| 4654 | /// ::= !DISubrange(count: !node, lowerBound: 2) |
| 4655 | /// ::= !DISubrange(lowerBound: !node1, upperBound: !node2, stride: !node3) |
| 4656 | bool LLParser::parseDISubrange(MDNode *&Result, bool IsDistinct) { |
| 4657 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4658 | OPTIONAL(count, MDSignedOrMDField, (-1, -1, INT64_MAX, false)); \ |
| 4659 | OPTIONAL(lowerBound, MDSignedOrMDField, ); \ |
| 4660 | OPTIONAL(upperBound, MDSignedOrMDField, ); \ |
| 4661 | OPTIONAL(stride, MDSignedOrMDField, ); |
| 4662 | PARSE_MD_FIELDS(); |
| 4663 | #undef VISIT_MD_FIELDS |
| 4664 | |
| 4665 | Metadata *Count = nullptr; |
| 4666 | Metadata *LowerBound = nullptr; |
| 4667 | Metadata *UpperBound = nullptr; |
| 4668 | Metadata *Stride = nullptr; |
| 4669 | if (count.isMDSignedField()) |
| 4670 | Count = ConstantAsMetadata::get(ConstantInt::getSigned( |
| 4671 | Type::getInt64Ty(Context), count.getMDSignedValue())); |
| 4672 | else if (count.isMDField()) |
| 4673 | Count = count.getMDFieldValue(); |
| 4674 | |
| 4675 | auto convToMetadata = [&](MDSignedOrMDField Bound) -> Metadata * { |
| 4676 | if (Bound.isMDSignedField()) |
| 4677 | return ConstantAsMetadata::get(ConstantInt::getSigned( |
| 4678 | Type::getInt64Ty(Context), Bound.getMDSignedValue())); |
| 4679 | if (Bound.isMDField()) |
| 4680 | return Bound.getMDFieldValue(); |
| 4681 | return nullptr; |
| 4682 | }; |
| 4683 | |
| 4684 | LowerBound = convToMetadata(lowerBound); |
| 4685 | UpperBound = convToMetadata(upperBound); |
| 4686 | Stride = convToMetadata(stride); |
| 4687 | |
| 4688 | Result = GET_OR_DISTINCT(DISubrange, |
| 4689 | (Context, Count, LowerBound, UpperBound, Stride)); |
| 4690 | |
| 4691 | return false; |
| 4692 | } |
| 4693 | |
| 4694 | /// parseDIGenericSubrange: |
| 4695 | /// ::= !DIGenericSubrange(lowerBound: !node1, upperBound: !node2, stride: |
| 4696 | /// !node3) |
| 4697 | bool LLParser::parseDIGenericSubrange(MDNode *&Result, bool IsDistinct) { |
| 4698 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4699 | OPTIONAL(count, MDSignedOrMDField, ); \ |
| 4700 | OPTIONAL(lowerBound, MDSignedOrMDField, ); \ |
| 4701 | OPTIONAL(upperBound, MDSignedOrMDField, ); \ |
| 4702 | OPTIONAL(stride, MDSignedOrMDField, ); |
| 4703 | PARSE_MD_FIELDS(); |
| 4704 | #undef VISIT_MD_FIELDS |
| 4705 | |
| 4706 | auto ConvToMetadata = [&](MDSignedOrMDField Bound) -> Metadata * { |
| 4707 | if (Bound.isMDSignedField()) |
| 4708 | return DIExpression::get( |
| 4709 | Context, {dwarf::DW_OP_consts, |
| 4710 | static_cast<uint64_t>(Bound.getMDSignedValue())}); |
| 4711 | if (Bound.isMDField()) |
| 4712 | return Bound.getMDFieldValue(); |
| 4713 | return nullptr; |
| 4714 | }; |
| 4715 | |
| 4716 | Metadata *Count = ConvToMetadata(count); |
| 4717 | Metadata *LowerBound = ConvToMetadata(lowerBound); |
| 4718 | Metadata *UpperBound = ConvToMetadata(upperBound); |
| 4719 | Metadata *Stride = ConvToMetadata(stride); |
| 4720 | |
| 4721 | Result = GET_OR_DISTINCT(DIGenericSubrange, |
| 4722 | (Context, Count, LowerBound, UpperBound, Stride)); |
| 4723 | |
| 4724 | return false; |
| 4725 | } |
| 4726 | |
| 4727 | /// parseDIEnumerator: |
| 4728 | /// ::= !DIEnumerator(value: 30, isUnsigned: true, name: "SomeKind") |
| 4729 | bool LLParser::parseDIEnumerator(MDNode *&Result, bool IsDistinct) { |
| 4730 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4731 | REQUIRED(name, MDStringField, ); \ |
| 4732 | REQUIRED(value, MDAPSIntField, ); \ |
| 4733 | OPTIONAL(isUnsigned, MDBoolField, (false)); |
| 4734 | PARSE_MD_FIELDS(); |
| 4735 | #undef VISIT_MD_FIELDS |
| 4736 | |
| 4737 | if (isUnsigned.Val && value.Val.isNegative()) |
| 4738 | return tokError("unsigned enumerator with negative value" ); |
| 4739 | |
| 4740 | APSInt Value(value.Val); |
| 4741 | // Add a leading zero so that unsigned values with the msb set are not |
| 4742 | // mistaken for negative values when used for signed enumerators. |
| 4743 | if (!isUnsigned.Val && value.Val.isUnsigned() && value.Val.isSignBitSet()) |
| 4744 | Value = Value.zext(Value.getBitWidth() + 1); |
| 4745 | |
| 4746 | Result = |
| 4747 | GET_OR_DISTINCT(DIEnumerator, (Context, Value, isUnsigned.Val, name.Val)); |
| 4748 | |
| 4749 | return false; |
| 4750 | } |
| 4751 | |
| 4752 | /// parseDIBasicType: |
| 4753 | /// ::= !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, |
| 4754 | /// encoding: DW_ATE_encoding, flags: 0) |
| 4755 | bool LLParser::parseDIBasicType(MDNode *&Result, bool IsDistinct) { |
| 4756 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4757 | OPTIONAL(tag, DwarfTagField, (dwarf::DW_TAG_base_type)); \ |
| 4758 | OPTIONAL(name, MDStringField, ); \ |
| 4759 | OPTIONAL(size, MDUnsignedField, (0, UINT64_MAX)); \ |
| 4760 | OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX)); \ |
| 4761 | OPTIONAL(encoding, DwarfAttEncodingField, ); \ |
| 4762 | OPTIONAL(flags, DIFlagField, ); |
| 4763 | PARSE_MD_FIELDS(); |
| 4764 | #undef VISIT_MD_FIELDS |
| 4765 | |
| 4766 | Result = GET_OR_DISTINCT(DIBasicType, (Context, tag.Val, name.Val, size.Val, |
| 4767 | align.Val, encoding.Val, flags.Val)); |
| 4768 | return false; |
| 4769 | } |
| 4770 | |
| 4771 | /// parseDIStringType: |
| 4772 | /// ::= !DIStringType(name: "character(4)", size: 32, align: 32) |
| 4773 | bool LLParser::parseDIStringType(MDNode *&Result, bool IsDistinct) { |
| 4774 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4775 | OPTIONAL(tag, DwarfTagField, (dwarf::DW_TAG_string_type)); \ |
| 4776 | OPTIONAL(name, MDStringField, ); \ |
| 4777 | OPTIONAL(stringLength, MDField, ); \ |
| 4778 | OPTIONAL(stringLengthExpression, MDField, ); \ |
| 4779 | OPTIONAL(size, MDUnsignedField, (0, UINT64_MAX)); \ |
| 4780 | OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX)); \ |
| 4781 | OPTIONAL(encoding, DwarfAttEncodingField, ); |
| 4782 | PARSE_MD_FIELDS(); |
| 4783 | #undef VISIT_MD_FIELDS |
| 4784 | |
| 4785 | Result = GET_OR_DISTINCT(DIStringType, |
| 4786 | (Context, tag.Val, name.Val, stringLength.Val, |
| 4787 | stringLengthExpression.Val, size.Val, align.Val, |
| 4788 | encoding.Val)); |
| 4789 | return false; |
| 4790 | } |
| 4791 | |
| 4792 | /// parseDIDerivedType: |
| 4793 | /// ::= !DIDerivedType(tag: DW_TAG_pointer_type, name: "int", file: !0, |
| 4794 | /// line: 7, scope: !1, baseType: !2, size: 32, |
| 4795 | /// align: 32, offset: 0, flags: 0, extraData: !3, |
| 4796 | /// dwarfAddressSpace: 3) |
| 4797 | bool LLParser::parseDIDerivedType(MDNode *&Result, bool IsDistinct) { |
| 4798 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4799 | REQUIRED(tag, DwarfTagField, ); \ |
| 4800 | OPTIONAL(name, MDStringField, ); \ |
| 4801 | OPTIONAL(file, MDField, ); \ |
| 4802 | OPTIONAL(line, LineField, ); \ |
| 4803 | OPTIONAL(scope, MDField, ); \ |
| 4804 | REQUIRED(baseType, MDField, ); \ |
| 4805 | OPTIONAL(size, MDUnsignedField, (0, UINT64_MAX)); \ |
| 4806 | OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX)); \ |
| 4807 | OPTIONAL(offset, MDUnsignedField, (0, UINT64_MAX)); \ |
| 4808 | OPTIONAL(flags, DIFlagField, ); \ |
| 4809 | OPTIONAL(, MDField, ); \ |
| 4810 | OPTIONAL(dwarfAddressSpace, MDUnsignedField, (UINT32_MAX, UINT32_MAX)); |
| 4811 | PARSE_MD_FIELDS(); |
| 4812 | #undef VISIT_MD_FIELDS |
| 4813 | |
| 4814 | Optional<unsigned> DWARFAddressSpace; |
| 4815 | if (dwarfAddressSpace.Val != UINT32_MAX) |
| 4816 | DWARFAddressSpace = dwarfAddressSpace.Val; |
| 4817 | |
| 4818 | Result = GET_OR_DISTINCT(DIDerivedType, |
| 4819 | (Context, tag.Val, name.Val, file.Val, line.Val, |
| 4820 | scope.Val, baseType.Val, size.Val, align.Val, |
| 4821 | offset.Val, DWARFAddressSpace, flags.Val, |
| 4822 | extraData.Val)); |
| 4823 | return false; |
| 4824 | } |
| 4825 | |
| 4826 | bool LLParser::parseDICompositeType(MDNode *&Result, bool IsDistinct) { |
| 4827 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4828 | REQUIRED(tag, DwarfTagField, ); \ |
| 4829 | OPTIONAL(name, MDStringField, ); \ |
| 4830 | OPTIONAL(file, MDField, ); \ |
| 4831 | OPTIONAL(line, LineField, ); \ |
| 4832 | OPTIONAL(scope, MDField, ); \ |
| 4833 | OPTIONAL(baseType, MDField, ); \ |
| 4834 | OPTIONAL(size, MDUnsignedField, (0, UINT64_MAX)); \ |
| 4835 | OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX)); \ |
| 4836 | OPTIONAL(offset, MDUnsignedField, (0, UINT64_MAX)); \ |
| 4837 | OPTIONAL(flags, DIFlagField, ); \ |
| 4838 | OPTIONAL(elements, MDField, ); \ |
| 4839 | OPTIONAL(runtimeLang, DwarfLangField, ); \ |
| 4840 | OPTIONAL(vtableHolder, MDField, ); \ |
| 4841 | OPTIONAL(templateParams, MDField, ); \ |
| 4842 | OPTIONAL(identifier, MDStringField, ); \ |
| 4843 | OPTIONAL(discriminator, MDField, ); \ |
| 4844 | OPTIONAL(dataLocation, MDField, ); \ |
| 4845 | OPTIONAL(associated, MDField, ); \ |
| 4846 | OPTIONAL(allocated, MDField, ); \ |
| 4847 | OPTIONAL(rank, MDSignedOrMDField, ); |
| 4848 | PARSE_MD_FIELDS(); |
| 4849 | #undef VISIT_MD_FIELDS |
| 4850 | |
| 4851 | Metadata *Rank = nullptr; |
| 4852 | if (rank.isMDSignedField()) |
| 4853 | Rank = ConstantAsMetadata::get(ConstantInt::getSigned( |
| 4854 | Type::getInt64Ty(Context), rank.getMDSignedValue())); |
| 4855 | else if (rank.isMDField()) |
| 4856 | Rank = rank.getMDFieldValue(); |
| 4857 | |
| 4858 | // If this has an identifier try to build an ODR type. |
| 4859 | if (identifier.Val) |
| 4860 | if (auto *CT = DICompositeType::buildODRType( |
| 4861 | Context, *identifier.Val, tag.Val, name.Val, file.Val, line.Val, |
| 4862 | scope.Val, baseType.Val, size.Val, align.Val, offset.Val, flags.Val, |
| 4863 | elements.Val, runtimeLang.Val, vtableHolder.Val, templateParams.Val, |
| 4864 | discriminator.Val, dataLocation.Val, associated.Val, allocated.Val, |
| 4865 | Rank)) { |
| 4866 | Result = CT; |
| 4867 | return false; |
| 4868 | } |
| 4869 | |
| 4870 | // Create a new node, and save it in the context if it belongs in the type |
| 4871 | // map. |
| 4872 | Result = GET_OR_DISTINCT( |
| 4873 | DICompositeType, |
| 4874 | (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, |
| 4875 | size.Val, align.Val, offset.Val, flags.Val, elements.Val, |
| 4876 | runtimeLang.Val, vtableHolder.Val, templateParams.Val, identifier.Val, |
| 4877 | discriminator.Val, dataLocation.Val, associated.Val, allocated.Val, |
| 4878 | Rank)); |
| 4879 | return false; |
| 4880 | } |
| 4881 | |
| 4882 | bool LLParser::parseDISubroutineType(MDNode *&Result, bool IsDistinct) { |
| 4883 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4884 | OPTIONAL(flags, DIFlagField, ); \ |
| 4885 | OPTIONAL(cc, DwarfCCField, ); \ |
| 4886 | REQUIRED(types, MDField, ); |
| 4887 | PARSE_MD_FIELDS(); |
| 4888 | #undef VISIT_MD_FIELDS |
| 4889 | |
| 4890 | Result = GET_OR_DISTINCT(DISubroutineType, |
| 4891 | (Context, flags.Val, cc.Val, types.Val)); |
| 4892 | return false; |
| 4893 | } |
| 4894 | |
| 4895 | /// parseDIFileType: |
| 4896 | /// ::= !DIFileType(filename: "path/to/file", directory: "/path/to/dir", |
| 4897 | /// checksumkind: CSK_MD5, |
| 4898 | /// checksum: "000102030405060708090a0b0c0d0e0f", |
| 4899 | /// source: "source file contents") |
| 4900 | bool LLParser::parseDIFile(MDNode *&Result, bool IsDistinct) { |
| 4901 | // The default constructed value for checksumkind is required, but will never |
| 4902 | // be used, as the parser checks if the field was actually Seen before using |
| 4903 | // the Val. |
| 4904 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4905 | REQUIRED(filename, MDStringField, ); \ |
| 4906 | REQUIRED(directory, MDStringField, ); \ |
| 4907 | OPTIONAL(checksumkind, ChecksumKindField, (DIFile::CSK_MD5)); \ |
| 4908 | OPTIONAL(checksum, MDStringField, ); \ |
| 4909 | OPTIONAL(source, MDStringField, ); |
| 4910 | PARSE_MD_FIELDS(); |
| 4911 | #undef VISIT_MD_FIELDS |
| 4912 | |
| 4913 | Optional<DIFile::ChecksumInfo<MDString *>> OptChecksum; |
| 4914 | if (checksumkind.Seen && checksum.Seen) |
| 4915 | OptChecksum.emplace(checksumkind.Val, checksum.Val); |
| 4916 | else if (checksumkind.Seen || checksum.Seen) |
| 4917 | return Lex.Error("'checksumkind' and 'checksum' must be provided together" ); |
| 4918 | |
| 4919 | Optional<MDString *> OptSource; |
| 4920 | if (source.Seen) |
| 4921 | OptSource = source.Val; |
| 4922 | Result = GET_OR_DISTINCT(DIFile, (Context, filename.Val, directory.Val, |
| 4923 | OptChecksum, OptSource)); |
| 4924 | return false; |
| 4925 | } |
| 4926 | |
| 4927 | /// parseDICompileUnit: |
| 4928 | /// ::= !DICompileUnit(language: DW_LANG_C99, file: !0, producer: "clang", |
| 4929 | /// isOptimized: true, flags: "-O2", runtimeVersion: 1, |
| 4930 | /// splitDebugFilename: "abc.debug", |
| 4931 | /// emissionKind: FullDebug, enums: !1, retainedTypes: !2, |
| 4932 | /// globals: !4, imports: !5, macros: !6, dwoId: 0x0abcd, |
| 4933 | /// sysroot: "/", sdk: "MacOSX.sdk") |
| 4934 | bool LLParser::parseDICompileUnit(MDNode *&Result, bool IsDistinct) { |
| 4935 | if (!IsDistinct) |
| 4936 | return Lex.Error("missing 'distinct', required for !DICompileUnit" ); |
| 4937 | |
| 4938 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4939 | REQUIRED(language, DwarfLangField, ); \ |
| 4940 | REQUIRED(file, MDField, (/* AllowNull */ false)); \ |
| 4941 | OPTIONAL(producer, MDStringField, ); \ |
| 4942 | OPTIONAL(isOptimized, MDBoolField, ); \ |
| 4943 | OPTIONAL(flags, MDStringField, ); \ |
| 4944 | OPTIONAL(runtimeVersion, MDUnsignedField, (0, UINT32_MAX)); \ |
| 4945 | OPTIONAL(splitDebugFilename, MDStringField, ); \ |
| 4946 | OPTIONAL(emissionKind, EmissionKindField, ); \ |
| 4947 | OPTIONAL(enums, MDField, ); \ |
| 4948 | OPTIONAL(retainedTypes, MDField, ); \ |
| 4949 | OPTIONAL(globals, MDField, ); \ |
| 4950 | OPTIONAL(imports, MDField, ); \ |
| 4951 | OPTIONAL(macros, MDField, ); \ |
| 4952 | OPTIONAL(dwoId, MDUnsignedField, ); \ |
| 4953 | OPTIONAL(splitDebugInlining, MDBoolField, = true); \ |
| 4954 | OPTIONAL(debugInfoForProfiling, MDBoolField, = false); \ |
| 4955 | OPTIONAL(nameTableKind, NameTableKindField, ); \ |
| 4956 | OPTIONAL(rangesBaseAddress, MDBoolField, = false); \ |
| 4957 | OPTIONAL(sysroot, MDStringField, ); \ |
| 4958 | OPTIONAL(sdk, MDStringField, ); |
| 4959 | PARSE_MD_FIELDS(); |
| 4960 | #undef VISIT_MD_FIELDS |
| 4961 | |
| 4962 | Result = DICompileUnit::getDistinct( |
| 4963 | Context, language.Val, file.Val, producer.Val, isOptimized.Val, flags.Val, |
| 4964 | runtimeVersion.Val, splitDebugFilename.Val, emissionKind.Val, enums.Val, |
| 4965 | retainedTypes.Val, globals.Val, imports.Val, macros.Val, dwoId.Val, |
| 4966 | splitDebugInlining.Val, debugInfoForProfiling.Val, nameTableKind.Val, |
| 4967 | rangesBaseAddress.Val, sysroot.Val, sdk.Val); |
| 4968 | return false; |
| 4969 | } |
| 4970 | |
| 4971 | /// parseDISubprogram: |
| 4972 | /// ::= !DISubprogram(scope: !0, name: "foo", linkageName: "_Zfoo", |
| 4973 | /// file: !1, line: 7, type: !2, isLocal: false, |
| 4974 | /// isDefinition: true, scopeLine: 8, containingType: !3, |
| 4975 | /// virtuality: DW_VIRTUALTIY_pure_virtual, |
| 4976 | /// virtualIndex: 10, thisAdjustment: 4, flags: 11, |
| 4977 | /// spFlags: 10, isOptimized: false, templateParams: !4, |
| 4978 | /// declaration: !5, retainedNodes: !6, thrownTypes: !7) |
| 4979 | bool LLParser::parseDISubprogram(MDNode *&Result, bool IsDistinct) { |
| 4980 | auto Loc = Lex.getLoc(); |
| 4981 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 4982 | OPTIONAL(scope, MDField, ); \ |
| 4983 | OPTIONAL(name, MDStringField, ); \ |
| 4984 | OPTIONAL(linkageName, MDStringField, ); \ |
| 4985 | OPTIONAL(file, MDField, ); \ |
| 4986 | OPTIONAL(line, LineField, ); \ |
| 4987 | OPTIONAL(type, MDField, ); \ |
| 4988 | OPTIONAL(isLocal, MDBoolField, ); \ |
| 4989 | OPTIONAL(isDefinition, MDBoolField, (true)); \ |
| 4990 | OPTIONAL(scopeLine, LineField, ); \ |
| 4991 | OPTIONAL(containingType, MDField, ); \ |
| 4992 | OPTIONAL(virtuality, DwarfVirtualityField, ); \ |
| 4993 | OPTIONAL(virtualIndex, MDUnsignedField, (0, UINT32_MAX)); \ |
| 4994 | OPTIONAL(thisAdjustment, MDSignedField, (0, INT32_MIN, INT32_MAX)); \ |
| 4995 | OPTIONAL(flags, DIFlagField, ); \ |
| 4996 | OPTIONAL(spFlags, DISPFlagField, ); \ |
| 4997 | OPTIONAL(isOptimized, MDBoolField, ); \ |
| 4998 | OPTIONAL(unit, MDField, ); \ |
| 4999 | OPTIONAL(templateParams, MDField, ); \ |
| 5000 | OPTIONAL(declaration, MDField, ); \ |
| 5001 | OPTIONAL(retainedNodes, MDField, ); \ |
| 5002 | OPTIONAL(thrownTypes, MDField, ); |
| 5003 | PARSE_MD_FIELDS(); |
| 5004 | #undef VISIT_MD_FIELDS |
| 5005 | |
| 5006 | // An explicit spFlags field takes precedence over individual fields in |
| 5007 | // older IR versions. |
| 5008 | DISubprogram::DISPFlags SPFlags = |
| 5009 | spFlags.Seen ? spFlags.Val |
| 5010 | : DISubprogram::toSPFlags(isLocal.Val, isDefinition.Val, |
| 5011 | isOptimized.Val, virtuality.Val); |
| 5012 | if ((SPFlags & DISubprogram::SPFlagDefinition) && !IsDistinct) |
| 5013 | return Lex.Error( |
| 5014 | Loc, |
| 5015 | "missing 'distinct', required for !DISubprogram that is a Definition" ); |
| 5016 | Result = GET_OR_DISTINCT( |
| 5017 | DISubprogram, |
| 5018 | (Context, scope.Val, name.Val, linkageName.Val, file.Val, line.Val, |
| 5019 | type.Val, scopeLine.Val, containingType.Val, virtualIndex.Val, |
| 5020 | thisAdjustment.Val, flags.Val, SPFlags, unit.Val, templateParams.Val, |
| 5021 | declaration.Val, retainedNodes.Val, thrownTypes.Val)); |
| 5022 | return false; |
| 5023 | } |
| 5024 | |
| 5025 | /// parseDILexicalBlock: |
| 5026 | /// ::= !DILexicalBlock(scope: !0, file: !2, line: 7, column: 9) |
| 5027 | bool LLParser::parseDILexicalBlock(MDNode *&Result, bool IsDistinct) { |
| 5028 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5029 | REQUIRED(scope, MDField, (/* AllowNull */ false)); \ |
| 5030 | OPTIONAL(file, MDField, ); \ |
| 5031 | OPTIONAL(line, LineField, ); \ |
| 5032 | OPTIONAL(column, ColumnField, ); |
| 5033 | PARSE_MD_FIELDS(); |
| 5034 | #undef VISIT_MD_FIELDS |
| 5035 | |
| 5036 | Result = GET_OR_DISTINCT( |
| 5037 | DILexicalBlock, (Context, scope.Val, file.Val, line.Val, column.Val)); |
| 5038 | return false; |
| 5039 | } |
| 5040 | |
| 5041 | /// parseDILexicalBlockFile: |
| 5042 | /// ::= !DILexicalBlockFile(scope: !0, file: !2, discriminator: 9) |
| 5043 | bool LLParser::parseDILexicalBlockFile(MDNode *&Result, bool IsDistinct) { |
| 5044 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5045 | REQUIRED(scope, MDField, (/* AllowNull */ false)); \ |
| 5046 | OPTIONAL(file, MDField, ); \ |
| 5047 | REQUIRED(discriminator, MDUnsignedField, (0, UINT32_MAX)); |
| 5048 | PARSE_MD_FIELDS(); |
| 5049 | #undef VISIT_MD_FIELDS |
| 5050 | |
| 5051 | Result = GET_OR_DISTINCT(DILexicalBlockFile, |
| 5052 | (Context, scope.Val, file.Val, discriminator.Val)); |
| 5053 | return false; |
| 5054 | } |
| 5055 | |
| 5056 | /// parseDICommonBlock: |
| 5057 | /// ::= !DICommonBlock(scope: !0, file: !2, name: "COMMON name", line: 9) |
| 5058 | bool LLParser::parseDICommonBlock(MDNode *&Result, bool IsDistinct) { |
| 5059 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5060 | REQUIRED(scope, MDField, ); \ |
| 5061 | OPTIONAL(declaration, MDField, ); \ |
| 5062 | OPTIONAL(name, MDStringField, ); \ |
| 5063 | OPTIONAL(file, MDField, ); \ |
| 5064 | OPTIONAL(line, LineField, ); |
| 5065 | PARSE_MD_FIELDS(); |
| 5066 | #undef VISIT_MD_FIELDS |
| 5067 | |
| 5068 | Result = GET_OR_DISTINCT(DICommonBlock, |
| 5069 | (Context, scope.Val, declaration.Val, name.Val, |
| 5070 | file.Val, line.Val)); |
| 5071 | return false; |
| 5072 | } |
| 5073 | |
| 5074 | /// parseDINamespace: |
| 5075 | /// ::= !DINamespace(scope: !0, file: !2, name: "SomeNamespace", line: 9) |
| 5076 | bool LLParser::parseDINamespace(MDNode *&Result, bool IsDistinct) { |
| 5077 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5078 | REQUIRED(scope, MDField, ); \ |
| 5079 | OPTIONAL(name, MDStringField, ); \ |
| 5080 | OPTIONAL(exportSymbols, MDBoolField, ); |
| 5081 | PARSE_MD_FIELDS(); |
| 5082 | #undef VISIT_MD_FIELDS |
| 5083 | |
| 5084 | Result = GET_OR_DISTINCT(DINamespace, |
| 5085 | (Context, scope.Val, name.Val, exportSymbols.Val)); |
| 5086 | return false; |
| 5087 | } |
| 5088 | |
| 5089 | /// parseDIMacro: |
| 5090 | /// ::= !DIMacro(macinfo: type, line: 9, name: "SomeMacro", value: |
| 5091 | /// "SomeValue") |
| 5092 | bool LLParser::parseDIMacro(MDNode *&Result, bool IsDistinct) { |
| 5093 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5094 | REQUIRED(type, DwarfMacinfoTypeField, ); \ |
| 5095 | OPTIONAL(line, LineField, ); \ |
| 5096 | REQUIRED(name, MDStringField, ); \ |
| 5097 | OPTIONAL(value, MDStringField, ); |
| 5098 | PARSE_MD_FIELDS(); |
| 5099 | #undef VISIT_MD_FIELDS |
| 5100 | |
| 5101 | Result = GET_OR_DISTINCT(DIMacro, |
| 5102 | (Context, type.Val, line.Val, name.Val, value.Val)); |
| 5103 | return false; |
| 5104 | } |
| 5105 | |
| 5106 | /// parseDIMacroFile: |
| 5107 | /// ::= !DIMacroFile(line: 9, file: !2, nodes: !3) |
| 5108 | bool LLParser::parseDIMacroFile(MDNode *&Result, bool IsDistinct) { |
| 5109 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5110 | OPTIONAL(type, DwarfMacinfoTypeField, (dwarf::DW_MACINFO_start_file)); \ |
| 5111 | OPTIONAL(line, LineField, ); \ |
| 5112 | REQUIRED(file, MDField, ); \ |
| 5113 | OPTIONAL(nodes, MDField, ); |
| 5114 | PARSE_MD_FIELDS(); |
| 5115 | #undef VISIT_MD_FIELDS |
| 5116 | |
| 5117 | Result = GET_OR_DISTINCT(DIMacroFile, |
| 5118 | (Context, type.Val, line.Val, file.Val, nodes.Val)); |
| 5119 | return false; |
| 5120 | } |
| 5121 | |
| 5122 | /// parseDIModule: |
| 5123 | /// ::= !DIModule(scope: !0, name: "SomeModule", configMacros: |
| 5124 | /// "-DNDEBUG", includePath: "/usr/include", apinotes: "module.apinotes", |
| 5125 | /// file: !1, line: 4, isDecl: false) |
| 5126 | bool LLParser::parseDIModule(MDNode *&Result, bool IsDistinct) { |
| 5127 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5128 | REQUIRED(scope, MDField, ); \ |
| 5129 | REQUIRED(name, MDStringField, ); \ |
| 5130 | OPTIONAL(configMacros, MDStringField, ); \ |
| 5131 | OPTIONAL(includePath, MDStringField, ); \ |
| 5132 | OPTIONAL(apinotes, MDStringField, ); \ |
| 5133 | OPTIONAL(file, MDField, ); \ |
| 5134 | OPTIONAL(line, LineField, ); \ |
| 5135 | OPTIONAL(isDecl, MDBoolField, ); |
| 5136 | PARSE_MD_FIELDS(); |
| 5137 | #undef VISIT_MD_FIELDS |
| 5138 | |
| 5139 | Result = GET_OR_DISTINCT(DIModule, (Context, file.Val, scope.Val, name.Val, |
| 5140 | configMacros.Val, includePath.Val, |
| 5141 | apinotes.Val, line.Val, isDecl.Val)); |
| 5142 | return false; |
| 5143 | } |
| 5144 | |
| 5145 | /// parseDITemplateTypeParameter: |
| 5146 | /// ::= !DITemplateTypeParameter(name: "Ty", type: !1, defaulted: false) |
| 5147 | bool LLParser::parseDITemplateTypeParameter(MDNode *&Result, bool IsDistinct) { |
| 5148 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5149 | OPTIONAL(name, MDStringField, ); \ |
| 5150 | REQUIRED(type, MDField, ); \ |
| 5151 | OPTIONAL(defaulted, MDBoolField, ); |
| 5152 | PARSE_MD_FIELDS(); |
| 5153 | #undef VISIT_MD_FIELDS |
| 5154 | |
| 5155 | Result = GET_OR_DISTINCT(DITemplateTypeParameter, |
| 5156 | (Context, name.Val, type.Val, defaulted.Val)); |
| 5157 | return false; |
| 5158 | } |
| 5159 | |
| 5160 | /// parseDITemplateValueParameter: |
| 5161 | /// ::= !DITemplateValueParameter(tag: DW_TAG_template_value_parameter, |
| 5162 | /// name: "V", type: !1, defaulted: false, |
| 5163 | /// value: i32 7) |
| 5164 | bool LLParser::parseDITemplateValueParameter(MDNode *&Result, bool IsDistinct) { |
| 5165 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5166 | OPTIONAL(tag, DwarfTagField, (dwarf::DW_TAG_template_value_parameter)); \ |
| 5167 | OPTIONAL(name, MDStringField, ); \ |
| 5168 | OPTIONAL(type, MDField, ); \ |
| 5169 | OPTIONAL(defaulted, MDBoolField, ); \ |
| 5170 | REQUIRED(value, MDField, ); |
| 5171 | |
| 5172 | PARSE_MD_FIELDS(); |
| 5173 | #undef VISIT_MD_FIELDS |
| 5174 | |
| 5175 | Result = GET_OR_DISTINCT( |
| 5176 | DITemplateValueParameter, |
| 5177 | (Context, tag.Val, name.Val, type.Val, defaulted.Val, value.Val)); |
| 5178 | return false; |
| 5179 | } |
| 5180 | |
| 5181 | /// parseDIGlobalVariable: |
| 5182 | /// ::= !DIGlobalVariable(scope: !0, name: "foo", linkageName: "foo", |
| 5183 | /// file: !1, line: 7, type: !2, isLocal: false, |
| 5184 | /// isDefinition: true, templateParams: !3, |
| 5185 | /// declaration: !4, align: 8) |
| 5186 | bool LLParser::parseDIGlobalVariable(MDNode *&Result, bool IsDistinct) { |
| 5187 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5188 | REQUIRED(name, MDStringField, (/* AllowEmpty */ false)); \ |
| 5189 | OPTIONAL(scope, MDField, ); \ |
| 5190 | OPTIONAL(linkageName, MDStringField, ); \ |
| 5191 | OPTIONAL(file, MDField, ); \ |
| 5192 | OPTIONAL(line, LineField, ); \ |
| 5193 | OPTIONAL(type, MDField, ); \ |
| 5194 | OPTIONAL(isLocal, MDBoolField, ); \ |
| 5195 | OPTIONAL(isDefinition, MDBoolField, (true)); \ |
| 5196 | OPTIONAL(templateParams, MDField, ); \ |
| 5197 | OPTIONAL(declaration, MDField, ); \ |
| 5198 | OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX)); |
| 5199 | PARSE_MD_FIELDS(); |
| 5200 | #undef VISIT_MD_FIELDS |
| 5201 | |
| 5202 | Result = |
| 5203 | GET_OR_DISTINCT(DIGlobalVariable, |
| 5204 | (Context, scope.Val, name.Val, linkageName.Val, file.Val, |
| 5205 | line.Val, type.Val, isLocal.Val, isDefinition.Val, |
| 5206 | declaration.Val, templateParams.Val, align.Val)); |
| 5207 | return false; |
| 5208 | } |
| 5209 | |
| 5210 | /// parseDILocalVariable: |
| 5211 | /// ::= !DILocalVariable(arg: 7, scope: !0, name: "foo", |
| 5212 | /// file: !1, line: 7, type: !2, arg: 2, flags: 7, |
| 5213 | /// align: 8) |
| 5214 | /// ::= !DILocalVariable(scope: !0, name: "foo", |
| 5215 | /// file: !1, line: 7, type: !2, arg: 2, flags: 7, |
| 5216 | /// align: 8) |
| 5217 | bool LLParser::parseDILocalVariable(MDNode *&Result, bool IsDistinct) { |
| 5218 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5219 | REQUIRED(scope, MDField, (/* AllowNull */ false)); \ |
| 5220 | OPTIONAL(name, MDStringField, ); \ |
| 5221 | OPTIONAL(arg, MDUnsignedField, (0, UINT16_MAX)); \ |
| 5222 | OPTIONAL(file, MDField, ); \ |
| 5223 | OPTIONAL(line, LineField, ); \ |
| 5224 | OPTIONAL(type, MDField, ); \ |
| 5225 | OPTIONAL(flags, DIFlagField, ); \ |
| 5226 | OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX)); |
| 5227 | PARSE_MD_FIELDS(); |
| 5228 | #undef VISIT_MD_FIELDS |
| 5229 | |
| 5230 | Result = GET_OR_DISTINCT(DILocalVariable, |
| 5231 | (Context, scope.Val, name.Val, file.Val, line.Val, |
| 5232 | type.Val, arg.Val, flags.Val, align.Val)); |
| 5233 | return false; |
| 5234 | } |
| 5235 | |
| 5236 | /// parseDILabel: |
| 5237 | /// ::= !DILabel(scope: !0, name: "foo", file: !1, line: 7) |
| 5238 | bool LLParser::parseDILabel(MDNode *&Result, bool IsDistinct) { |
| 5239 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5240 | REQUIRED(scope, MDField, (/* AllowNull */ false)); \ |
| 5241 | REQUIRED(name, MDStringField, ); \ |
| 5242 | REQUIRED(file, MDField, ); \ |
| 5243 | REQUIRED(line, LineField, ); |
| 5244 | PARSE_MD_FIELDS(); |
| 5245 | #undef VISIT_MD_FIELDS |
| 5246 | |
| 5247 | Result = GET_OR_DISTINCT(DILabel, |
| 5248 | (Context, scope.Val, name.Val, file.Val, line.Val)); |
| 5249 | return false; |
| 5250 | } |
| 5251 | |
| 5252 | /// parseDIExpression: |
| 5253 | /// ::= !DIExpression(0, 7, -1) |
| 5254 | bool LLParser::parseDIExpression(MDNode *&Result, bool IsDistinct) { |
| 5255 | assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name" ); |
| 5256 | Lex.Lex(); |
| 5257 | |
| 5258 | if (parseToken(lltok::lparen, "expected '(' here" )) |
| 5259 | return true; |
| 5260 | |
| 5261 | SmallVector<uint64_t, 8> Elements; |
| 5262 | if (Lex.getKind() != lltok::rparen) |
| 5263 | do { |
| 5264 | if (Lex.getKind() == lltok::DwarfOp) { |
| 5265 | if (unsigned Op = dwarf::getOperationEncoding(Lex.getStrVal())) { |
| 5266 | Lex.Lex(); |
| 5267 | Elements.push_back(Op); |
| 5268 | continue; |
| 5269 | } |
| 5270 | return tokError(Twine("invalid DWARF op '" ) + Lex.getStrVal() + "'" ); |
| 5271 | } |
| 5272 | |
| 5273 | if (Lex.getKind() == lltok::DwarfAttEncoding) { |
| 5274 | if (unsigned Op = dwarf::getAttributeEncoding(Lex.getStrVal())) { |
| 5275 | Lex.Lex(); |
| 5276 | Elements.push_back(Op); |
| 5277 | continue; |
| 5278 | } |
| 5279 | return tokError(Twine("invalid DWARF attribute encoding '" ) + |
| 5280 | Lex.getStrVal() + "'" ); |
| 5281 | } |
| 5282 | |
| 5283 | if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned()) |
| 5284 | return tokError("expected unsigned integer" ); |
| 5285 | |
| 5286 | auto &U = Lex.getAPSIntVal(); |
| 5287 | if (U.ugt(UINT64_MAX)) |
| 5288 | return tokError("element too large, limit is " + Twine(UINT64_MAX)); |
| 5289 | Elements.push_back(U.getZExtValue()); |
| 5290 | Lex.Lex(); |
| 5291 | } while (EatIfPresent(lltok::comma)); |
| 5292 | |
| 5293 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 5294 | return true; |
| 5295 | |
| 5296 | Result = GET_OR_DISTINCT(DIExpression, (Context, Elements)); |
| 5297 | return false; |
| 5298 | } |
| 5299 | |
| 5300 | /// parseDIGlobalVariableExpression: |
| 5301 | /// ::= !DIGlobalVariableExpression(var: !0, expr: !1) |
| 5302 | bool LLParser::parseDIGlobalVariableExpression(MDNode *&Result, |
| 5303 | bool IsDistinct) { |
| 5304 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5305 | REQUIRED(var, MDField, ); \ |
| 5306 | REQUIRED(expr, MDField, ); |
| 5307 | PARSE_MD_FIELDS(); |
| 5308 | #undef VISIT_MD_FIELDS |
| 5309 | |
| 5310 | Result = |
| 5311 | GET_OR_DISTINCT(DIGlobalVariableExpression, (Context, var.Val, expr.Val)); |
| 5312 | return false; |
| 5313 | } |
| 5314 | |
| 5315 | /// parseDIObjCProperty: |
| 5316 | /// ::= !DIObjCProperty(name: "foo", file: !1, line: 7, setter: "setFoo", |
| 5317 | /// getter: "getFoo", attributes: 7, type: !2) |
| 5318 | bool LLParser::parseDIObjCProperty(MDNode *&Result, bool IsDistinct) { |
| 5319 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5320 | OPTIONAL(name, MDStringField, ); \ |
| 5321 | OPTIONAL(file, MDField, ); \ |
| 5322 | OPTIONAL(line, LineField, ); \ |
| 5323 | OPTIONAL(setter, MDStringField, ); \ |
| 5324 | OPTIONAL(getter, MDStringField, ); \ |
| 5325 | OPTIONAL(attributes, MDUnsignedField, (0, UINT32_MAX)); \ |
| 5326 | OPTIONAL(type, MDField, ); |
| 5327 | PARSE_MD_FIELDS(); |
| 5328 | #undef VISIT_MD_FIELDS |
| 5329 | |
| 5330 | Result = GET_OR_DISTINCT(DIObjCProperty, |
| 5331 | (Context, name.Val, file.Val, line.Val, setter.Val, |
| 5332 | getter.Val, attributes.Val, type.Val)); |
| 5333 | return false; |
| 5334 | } |
| 5335 | |
| 5336 | /// parseDIImportedEntity: |
| 5337 | /// ::= !DIImportedEntity(tag: DW_TAG_imported_module, scope: !0, entity: !1, |
| 5338 | /// line: 7, name: "foo") |
| 5339 | bool LLParser::parseDIImportedEntity(MDNode *&Result, bool IsDistinct) { |
| 5340 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ |
| 5341 | REQUIRED(tag, DwarfTagField, ); \ |
| 5342 | REQUIRED(scope, MDField, ); \ |
| 5343 | OPTIONAL(entity, MDField, ); \ |
| 5344 | OPTIONAL(file, MDField, ); \ |
| 5345 | OPTIONAL(line, LineField, ); \ |
| 5346 | OPTIONAL(name, MDStringField, ); |
| 5347 | PARSE_MD_FIELDS(); |
| 5348 | #undef VISIT_MD_FIELDS |
| 5349 | |
| 5350 | Result = GET_OR_DISTINCT( |
| 5351 | DIImportedEntity, |
| 5352 | (Context, tag.Val, scope.Val, entity.Val, file.Val, line.Val, name.Val)); |
| 5353 | return false; |
| 5354 | } |
| 5355 | |
| 5356 | #undef PARSE_MD_FIELD |
| 5357 | #undef NOP_FIELD |
| 5358 | #undef REQUIRE_FIELD |
| 5359 | #undef DECLARE_FIELD |
| 5360 | |
| 5361 | /// parseMetadataAsValue |
| 5362 | /// ::= metadata i32 %local |
| 5363 | /// ::= metadata i32 @global |
| 5364 | /// ::= metadata i32 7 |
| 5365 | /// ::= metadata !0 |
| 5366 | /// ::= metadata !{...} |
| 5367 | /// ::= metadata !"string" |
| 5368 | bool LLParser::parseMetadataAsValue(Value *&V, PerFunctionState &PFS) { |
| 5369 | // Note: the type 'metadata' has already been parsed. |
| 5370 | Metadata *MD; |
| 5371 | if (parseMetadata(MD, &PFS)) |
| 5372 | return true; |
| 5373 | |
| 5374 | V = MetadataAsValue::get(Context, MD); |
| 5375 | return false; |
| 5376 | } |
| 5377 | |
| 5378 | /// parseValueAsMetadata |
| 5379 | /// ::= i32 %local |
| 5380 | /// ::= i32 @global |
| 5381 | /// ::= i32 7 |
| 5382 | bool LLParser::parseValueAsMetadata(Metadata *&MD, const Twine &TypeMsg, |
| 5383 | PerFunctionState *PFS) { |
| 5384 | Type *Ty; |
| 5385 | LocTy Loc; |
| 5386 | if (parseType(Ty, TypeMsg, Loc)) |
| 5387 | return true; |
| 5388 | if (Ty->isMetadataTy()) |
| 5389 | return error(Loc, "invalid metadata-value-metadata roundtrip" ); |
| 5390 | |
| 5391 | Value *V; |
| 5392 | if (parseValue(Ty, V, PFS)) |
| 5393 | return true; |
| 5394 | |
| 5395 | MD = ValueAsMetadata::get(V); |
| 5396 | return false; |
| 5397 | } |
| 5398 | |
| 5399 | /// parseMetadata |
| 5400 | /// ::= i32 %local |
| 5401 | /// ::= i32 @global |
| 5402 | /// ::= i32 7 |
| 5403 | /// ::= !42 |
| 5404 | /// ::= !{...} |
| 5405 | /// ::= !"string" |
| 5406 | /// ::= !DILocation(...) |
| 5407 | bool LLParser::parseMetadata(Metadata *&MD, PerFunctionState *PFS) { |
| 5408 | if (Lex.getKind() == lltok::MetadataVar) { |
| 5409 | MDNode *N; |
| 5410 | if (parseSpecializedMDNode(N)) |
| 5411 | return true; |
| 5412 | MD = N; |
| 5413 | return false; |
| 5414 | } |
| 5415 | |
| 5416 | // ValueAsMetadata: |
| 5417 | // <type> <value> |
| 5418 | if (Lex.getKind() != lltok::exclaim) |
| 5419 | return parseValueAsMetadata(MD, "expected metadata operand" , PFS); |
| 5420 | |
| 5421 | // '!'. |
| 5422 | assert(Lex.getKind() == lltok::exclaim && "Expected '!' here" ); |
| 5423 | Lex.Lex(); |
| 5424 | |
| 5425 | // MDString: |
| 5426 | // ::= '!' STRINGCONSTANT |
| 5427 | if (Lex.getKind() == lltok::StringConstant) { |
| 5428 | MDString *S; |
| 5429 | if (parseMDString(S)) |
| 5430 | return true; |
| 5431 | MD = S; |
| 5432 | return false; |
| 5433 | } |
| 5434 | |
| 5435 | // MDNode: |
| 5436 | // !{ ... } |
| 5437 | // !7 |
| 5438 | MDNode *N; |
| 5439 | if (parseMDNodeTail(N)) |
| 5440 | return true; |
| 5441 | MD = N; |
| 5442 | return false; |
| 5443 | } |
| 5444 | |
| 5445 | //===----------------------------------------------------------------------===// |
| 5446 | // Function Parsing. |
| 5447 | //===----------------------------------------------------------------------===// |
| 5448 | |
| 5449 | bool LLParser::convertValIDToValue(Type *Ty, ValID &ID, Value *&V, |
| 5450 | PerFunctionState *PFS, bool IsCall) { |
| 5451 | if (Ty->isFunctionTy()) |
| 5452 | return error(ID.Loc, "functions are not values, refer to them as pointers" ); |
| 5453 | |
| 5454 | switch (ID.Kind) { |
| 5455 | case ValID::t_LocalID: |
| 5456 | if (!PFS) |
| 5457 | return error(ID.Loc, "invalid use of function-local name" ); |
| 5458 | V = PFS->getVal(ID.UIntVal, Ty, ID.Loc, IsCall); |
| 5459 | return V == nullptr; |
| 5460 | case ValID::t_LocalName: |
| 5461 | if (!PFS) |
| 5462 | return error(ID.Loc, "invalid use of function-local name" ); |
| 5463 | V = PFS->getVal(ID.StrVal, Ty, ID.Loc, IsCall); |
| 5464 | return V == nullptr; |
| 5465 | case ValID::t_InlineAsm: { |
| 5466 | if (!ID.FTy || !InlineAsm::Verify(ID.FTy, ID.StrVal2)) |
| 5467 | return error(ID.Loc, "invalid type for inline asm constraint string" ); |
| 5468 | V = InlineAsm::get(ID.FTy, ID.StrVal, ID.StrVal2, ID.UIntVal & 1, |
| 5469 | (ID.UIntVal >> 1) & 1, |
| 5470 | (InlineAsm::AsmDialect(ID.UIntVal >> 2))); |
| 5471 | return false; |
| 5472 | } |
| 5473 | case ValID::t_GlobalName: |
| 5474 | V = getGlobalVal(ID.StrVal, Ty, ID.Loc, IsCall); |
| 5475 | return V == nullptr; |
| 5476 | case ValID::t_GlobalID: |
| 5477 | V = getGlobalVal(ID.UIntVal, Ty, ID.Loc, IsCall); |
| 5478 | return V == nullptr; |
| 5479 | case ValID::t_APSInt: |
| 5480 | if (!Ty->isIntegerTy()) |
| 5481 | return error(ID.Loc, "integer constant must have integer type" ); |
| 5482 | ID.APSIntVal = ID.APSIntVal.extOrTrunc(Ty->getPrimitiveSizeInBits()); |
| 5483 | V = ConstantInt::get(Context, ID.APSIntVal); |
| 5484 | return false; |
| 5485 | case ValID::t_APFloat: |
| 5486 | if (!Ty->isFloatingPointTy() || |
| 5487 | !ConstantFP::isValueValidForType(Ty, ID.APFloatVal)) |
| 5488 | return error(ID.Loc, "floating point constant invalid for type" ); |
| 5489 | |
| 5490 | // The lexer has no type info, so builds all half, bfloat, float, and double |
| 5491 | // FP constants as double. Fix this here. Long double does not need this. |
| 5492 | if (&ID.APFloatVal.getSemantics() == &APFloat::IEEEdouble()) { |
| 5493 | // Check for signaling before potentially converting and losing that info. |
| 5494 | bool IsSNAN = ID.APFloatVal.isSignaling(); |
| 5495 | bool Ignored; |
| 5496 | if (Ty->isHalfTy()) |
| 5497 | ID.APFloatVal.convert(APFloat::IEEEhalf(), APFloat::rmNearestTiesToEven, |
| 5498 | &Ignored); |
| 5499 | else if (Ty->isBFloatTy()) |
| 5500 | ID.APFloatVal.convert(APFloat::BFloat(), APFloat::rmNearestTiesToEven, |
| 5501 | &Ignored); |
| 5502 | else if (Ty->isFloatTy()) |
| 5503 | ID.APFloatVal.convert(APFloat::IEEEsingle(), APFloat::rmNearestTiesToEven, |
| 5504 | &Ignored); |
| 5505 | if (IsSNAN) { |
| 5506 | // The convert call above may quiet an SNaN, so manufacture another |
| 5507 | // SNaN. The bitcast works because the payload (significand) parameter |
| 5508 | // is truncated to fit. |
| 5509 | APInt Payload = ID.APFloatVal.bitcastToAPInt(); |
| 5510 | ID.APFloatVal = APFloat::getSNaN(ID.APFloatVal.getSemantics(), |
| 5511 | ID.APFloatVal.isNegative(), &Payload); |
| 5512 | } |
| 5513 | } |
| 5514 | V = ConstantFP::get(Context, ID.APFloatVal); |
| 5515 | |
| 5516 | if (V->getType() != Ty) |
| 5517 | return error(ID.Loc, "floating point constant does not have type '" + |
| 5518 | getTypeString(Ty) + "'" ); |
| 5519 | |
| 5520 | return false; |
| 5521 | case ValID::t_Null: |
| 5522 | if (!Ty->isPointerTy()) |
| 5523 | return error(ID.Loc, "null must be a pointer type" ); |
| 5524 | V = ConstantPointerNull::get(cast<PointerType>(Ty)); |
| 5525 | return false; |
| 5526 | case ValID::t_Undef: |
| 5527 | // FIXME: LabelTy should not be a first-class type. |
| 5528 | if (!Ty->isFirstClassType() || Ty->isLabelTy()) |
| 5529 | return error(ID.Loc, "invalid type for undef constant" ); |
| 5530 | V = UndefValue::get(Ty); |
| 5531 | return false; |
| 5532 | case ValID::t_EmptyArray: |
| 5533 | if (!Ty->isArrayTy() || cast<ArrayType>(Ty)->getNumElements() != 0) |
| 5534 | return error(ID.Loc, "invalid empty array initializer" ); |
| 5535 | V = UndefValue::get(Ty); |
| 5536 | return false; |
| 5537 | case ValID::t_Zero: |
| 5538 | // FIXME: LabelTy should not be a first-class type. |
| 5539 | if (!Ty->isFirstClassType() || Ty->isLabelTy()) |
| 5540 | return error(ID.Loc, "invalid type for null constant" ); |
| 5541 | V = Constant::getNullValue(Ty); |
| 5542 | return false; |
| 5543 | case ValID::t_None: |
| 5544 | if (!Ty->isTokenTy()) |
| 5545 | return error(ID.Loc, "invalid type for none constant" ); |
| 5546 | V = Constant::getNullValue(Ty); |
| 5547 | return false; |
| 5548 | case ValID::t_Poison: |
| 5549 | // FIXME: LabelTy should not be a first-class type. |
| 5550 | if (!Ty->isFirstClassType() || Ty->isLabelTy()) |
| 5551 | return error(ID.Loc, "invalid type for poison constant" ); |
| 5552 | V = PoisonValue::get(Ty); |
| 5553 | return false; |
| 5554 | case ValID::t_Constant: |
| 5555 | if (ID.ConstantVal->getType() != Ty) |
| 5556 | return error(ID.Loc, "constant expression type mismatch" ); |
| 5557 | V = ID.ConstantVal; |
| 5558 | return false; |
| 5559 | case ValID::t_ConstantStruct: |
| 5560 | case ValID::t_PackedConstantStruct: |
| 5561 | if (StructType *ST = dyn_cast<StructType>(Ty)) { |
| 5562 | if (ST->getNumElements() != ID.UIntVal) |
| 5563 | return error(ID.Loc, |
| 5564 | "initializer with struct type has wrong # elements" ); |
| 5565 | if (ST->isPacked() != (ID.Kind == ValID::t_PackedConstantStruct)) |
| 5566 | return error(ID.Loc, "packed'ness of initializer and type don't match" ); |
| 5567 | |
| 5568 | // Verify that the elements are compatible with the structtype. |
| 5569 | for (unsigned i = 0, e = ID.UIntVal; i != e; ++i) |
| 5570 | if (ID.ConstantStructElts[i]->getType() != ST->getElementType(i)) |
| 5571 | return error( |
| 5572 | ID.Loc, |
| 5573 | "element " + Twine(i) + |
| 5574 | " of struct initializer doesn't match struct element type" ); |
| 5575 | |
| 5576 | V = ConstantStruct::get( |
| 5577 | ST, makeArrayRef(ID.ConstantStructElts.get(), ID.UIntVal)); |
| 5578 | } else |
| 5579 | return error(ID.Loc, "constant expression type mismatch" ); |
| 5580 | return false; |
| 5581 | } |
| 5582 | llvm_unreachable("Invalid ValID" ); |
| 5583 | } |
| 5584 | |
| 5585 | bool LLParser::parseConstantValue(Type *Ty, Constant *&C) { |
| 5586 | C = nullptr; |
| 5587 | ValID ID; |
| 5588 | auto Loc = Lex.getLoc(); |
| 5589 | if (parseValID(ID, /*PFS=*/nullptr)) |
| 5590 | return true; |
| 5591 | switch (ID.Kind) { |
| 5592 | case ValID::t_APSInt: |
| 5593 | case ValID::t_APFloat: |
| 5594 | case ValID::t_Undef: |
| 5595 | case ValID::t_Constant: |
| 5596 | case ValID::t_ConstantStruct: |
| 5597 | case ValID::t_PackedConstantStruct: { |
| 5598 | Value *V; |
| 5599 | if (convertValIDToValue(Ty, ID, V, /*PFS=*/nullptr, /*IsCall=*/false)) |
| 5600 | return true; |
| 5601 | assert(isa<Constant>(V) && "Expected a constant value" ); |
| 5602 | C = cast<Constant>(V); |
| 5603 | return false; |
| 5604 | } |
| 5605 | case ValID::t_Null: |
| 5606 | C = Constant::getNullValue(Ty); |
| 5607 | return false; |
| 5608 | default: |
| 5609 | return error(Loc, "expected a constant value" ); |
| 5610 | } |
| 5611 | } |
| 5612 | |
| 5613 | bool LLParser::parseValue(Type *Ty, Value *&V, PerFunctionState *PFS) { |
| 5614 | V = nullptr; |
| 5615 | ValID ID; |
| 5616 | return parseValID(ID, PFS) || |
| 5617 | convertValIDToValue(Ty, ID, V, PFS, /*IsCall=*/false); |
| 5618 | } |
| 5619 | |
| 5620 | bool LLParser::parseTypeAndValue(Value *&V, PerFunctionState *PFS) { |
| 5621 | Type *Ty = nullptr; |
| 5622 | return parseType(Ty) || parseValue(Ty, V, PFS); |
| 5623 | } |
| 5624 | |
| 5625 | bool LLParser::parseTypeAndBasicBlock(BasicBlock *&BB, LocTy &Loc, |
| 5626 | PerFunctionState &PFS) { |
| 5627 | Value *V; |
| 5628 | Loc = Lex.getLoc(); |
| 5629 | if (parseTypeAndValue(V, PFS)) |
| 5630 | return true; |
| 5631 | if (!isa<BasicBlock>(V)) |
| 5632 | return error(Loc, "expected a basic block" ); |
| 5633 | BB = cast<BasicBlock>(V); |
| 5634 | return false; |
| 5635 | } |
| 5636 | |
| 5637 | /// FunctionHeader |
| 5638 | /// ::= OptionalLinkage OptionalPreemptionSpecifier OptionalVisibility |
| 5639 | /// OptionalCallingConv OptRetAttrs OptUnnamedAddr Type GlobalName |
| 5640 | /// '(' ArgList ')' OptAddrSpace OptFuncAttrs OptSection OptionalAlign |
| 5641 | /// OptGC OptionalPrefix OptionalPrologue OptPersonalityFn |
| 5642 | bool LLParser::(Function *&Fn, bool IsDefine) { |
| 5643 | // parse the linkage. |
| 5644 | LocTy LinkageLoc = Lex.getLoc(); |
| 5645 | unsigned Linkage; |
| 5646 | unsigned Visibility; |
| 5647 | unsigned DLLStorageClass; |
| 5648 | bool DSOLocal; |
| 5649 | AttrBuilder RetAttrs; |
| 5650 | unsigned CC; |
| 5651 | bool HasLinkage; |
| 5652 | Type *RetType = nullptr; |
| 5653 | LocTy RetTypeLoc = Lex.getLoc(); |
| 5654 | if (parseOptionalLinkage(Linkage, HasLinkage, Visibility, DLLStorageClass, |
| 5655 | DSOLocal) || |
| 5656 | parseOptionalCallingConv(CC) || parseOptionalReturnAttrs(RetAttrs) || |
| 5657 | parseType(RetType, RetTypeLoc, true /*void allowed*/)) |
| 5658 | return true; |
| 5659 | |
| 5660 | // Verify that the linkage is ok. |
| 5661 | switch ((GlobalValue::LinkageTypes)Linkage) { |
| 5662 | case GlobalValue::ExternalLinkage: |
| 5663 | break; // always ok. |
| 5664 | case GlobalValue::ExternalWeakLinkage: |
| 5665 | if (IsDefine) |
| 5666 | return error(LinkageLoc, "invalid linkage for function definition" ); |
| 5667 | break; |
| 5668 | case GlobalValue::PrivateLinkage: |
| 5669 | case GlobalValue::InternalLinkage: |
| 5670 | case GlobalValue::AvailableExternallyLinkage: |
| 5671 | case GlobalValue::LinkOnceAnyLinkage: |
| 5672 | case GlobalValue::LinkOnceODRLinkage: |
| 5673 | case GlobalValue::WeakAnyLinkage: |
| 5674 | case GlobalValue::WeakODRLinkage: |
| 5675 | if (!IsDefine) |
| 5676 | return error(LinkageLoc, "invalid linkage for function declaration" ); |
| 5677 | break; |
| 5678 | case GlobalValue::AppendingLinkage: |
| 5679 | case GlobalValue::CommonLinkage: |
| 5680 | return error(LinkageLoc, "invalid function linkage type" ); |
| 5681 | } |
| 5682 | |
| 5683 | if (!isValidVisibilityForLinkage(Visibility, Linkage)) |
| 5684 | return error(LinkageLoc, |
| 5685 | "symbol with local linkage must have default visibility" ); |
| 5686 | |
| 5687 | if (!FunctionType::isValidReturnType(RetType)) |
| 5688 | return error(RetTypeLoc, "invalid function return type" ); |
| 5689 | |
| 5690 | LocTy NameLoc = Lex.getLoc(); |
| 5691 | |
| 5692 | std::string FunctionName; |
| 5693 | if (Lex.getKind() == lltok::GlobalVar) { |
| 5694 | FunctionName = Lex.getStrVal(); |
| 5695 | } else if (Lex.getKind() == lltok::GlobalID) { // @42 is ok. |
| 5696 | unsigned NameID = Lex.getUIntVal(); |
| 5697 | |
| 5698 | if (NameID != NumberedVals.size()) |
| 5699 | return tokError("function expected to be numbered '%" + |
| 5700 | Twine(NumberedVals.size()) + "'" ); |
| 5701 | } else { |
| 5702 | return tokError("expected function name" ); |
| 5703 | } |
| 5704 | |
| 5705 | Lex.Lex(); |
| 5706 | |
| 5707 | if (Lex.getKind() != lltok::lparen) |
| 5708 | return tokError("expected '(' in function argument list" ); |
| 5709 | |
| 5710 | SmallVector<ArgInfo, 8> ArgList; |
| 5711 | bool IsVarArg; |
| 5712 | AttrBuilder FuncAttrs; |
| 5713 | std::vector<unsigned> FwdRefAttrGrps; |
| 5714 | LocTy BuiltinLoc; |
| 5715 | std::string Section; |
| 5716 | std::string Partition; |
| 5717 | MaybeAlign Alignment; |
| 5718 | std::string GC; |
| 5719 | GlobalValue::UnnamedAddr UnnamedAddr = GlobalValue::UnnamedAddr::None; |
| 5720 | unsigned AddrSpace = 0; |
| 5721 | Constant *Prefix = nullptr; |
| 5722 | Constant *Prologue = nullptr; |
| 5723 | Constant *PersonalityFn = nullptr; |
| 5724 | Comdat *C; |
| 5725 | |
| 5726 | if (parseArgumentList(ArgList, IsVarArg) || |
| 5727 | parseOptionalUnnamedAddr(UnnamedAddr) || |
| 5728 | parseOptionalProgramAddrSpace(AddrSpace) || |
| 5729 | parseFnAttributeValuePairs(FuncAttrs, FwdRefAttrGrps, false, |
| 5730 | BuiltinLoc) || |
| 5731 | (EatIfPresent(lltok::kw_section) && parseStringConstant(Section)) || |
| 5732 | (EatIfPresent(lltok::kw_partition) && parseStringConstant(Partition)) || |
| 5733 | parseOptionalComdat(FunctionName, C) || |
| 5734 | parseOptionalAlignment(Alignment) || |
| 5735 | (EatIfPresent(lltok::kw_gc) && parseStringConstant(GC)) || |
| 5736 | (EatIfPresent(lltok::kw_prefix) && parseGlobalTypeAndValue(Prefix)) || |
| 5737 | (EatIfPresent(lltok::kw_prologue) && parseGlobalTypeAndValue(Prologue)) || |
| 5738 | (EatIfPresent(lltok::kw_personality) && |
| 5739 | parseGlobalTypeAndValue(PersonalityFn))) |
| 5740 | return true; |
| 5741 | |
| 5742 | if (FuncAttrs.contains(Attribute::Builtin)) |
| 5743 | return error(BuiltinLoc, "'builtin' attribute not valid on function" ); |
| 5744 | |
| 5745 | // If the alignment was parsed as an attribute, move to the alignment field. |
| 5746 | if (FuncAttrs.hasAlignmentAttr()) { |
| 5747 | Alignment = FuncAttrs.getAlignment(); |
| 5748 | FuncAttrs.removeAttribute(Attribute::Alignment); |
| 5749 | } |
| 5750 | |
| 5751 | // Okay, if we got here, the function is syntactically valid. Convert types |
| 5752 | // and do semantic checks. |
| 5753 | std::vector<Type*> ParamTypeList; |
| 5754 | SmallVector<AttributeSet, 8> Attrs; |
| 5755 | |
| 5756 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { |
| 5757 | ParamTypeList.push_back(ArgList[i].Ty); |
| 5758 | Attrs.push_back(ArgList[i].Attrs); |
| 5759 | } |
| 5760 | |
| 5761 | AttributeList PAL = |
| 5762 | AttributeList::get(Context, AttributeSet::get(Context, FuncAttrs), |
| 5763 | AttributeSet::get(Context, RetAttrs), Attrs); |
| 5764 | |
| 5765 | if (PAL.hasAttribute(1, Attribute::StructRet) && !RetType->isVoidTy()) |
| 5766 | return error(RetTypeLoc, "functions with 'sret' argument must return void" ); |
| 5767 | |
| 5768 | FunctionType *FT = FunctionType::get(RetType, ParamTypeList, IsVarArg); |
| 5769 | PointerType *PFT = PointerType::get(FT, AddrSpace); |
| 5770 | |
| 5771 | Fn = nullptr; |
| 5772 | if (!FunctionName.empty()) { |
| 5773 | // If this was a definition of a forward reference, remove the definition |
| 5774 | // from the forward reference table and fill in the forward ref. |
| 5775 | auto FRVI = ForwardRefVals.find(FunctionName); |
| 5776 | if (FRVI != ForwardRefVals.end()) { |
| 5777 | Fn = M->getFunction(FunctionName); |
| 5778 | if (!Fn) |
| 5779 | return error(FRVI->second.second, "invalid forward reference to " |
| 5780 | "function as global value!" ); |
| 5781 | if (Fn->getType() != PFT) |
| 5782 | return error(FRVI->second.second, |
| 5783 | "invalid forward reference to " |
| 5784 | "function '" + |
| 5785 | FunctionName + |
| 5786 | "' with wrong type: " |
| 5787 | "expected '" + |
| 5788 | getTypeString(PFT) + "' but was '" + |
| 5789 | getTypeString(Fn->getType()) + "'" ); |
| 5790 | ForwardRefVals.erase(FRVI); |
| 5791 | } else if ((Fn = M->getFunction(FunctionName))) { |
| 5792 | // Reject redefinitions. |
| 5793 | return error(NameLoc, |
| 5794 | "invalid redefinition of function '" + FunctionName + "'" ); |
| 5795 | } else if (M->getNamedValue(FunctionName)) { |
| 5796 | return error(NameLoc, "redefinition of function '@" + FunctionName + "'" ); |
| 5797 | } |
| 5798 | |
| 5799 | } else { |
| 5800 | // If this is a definition of a forward referenced function, make sure the |
| 5801 | // types agree. |
| 5802 | auto I = ForwardRefValIDs.find(NumberedVals.size()); |
| 5803 | if (I != ForwardRefValIDs.end()) { |
| 5804 | Fn = cast<Function>(I->second.first); |
| 5805 | if (Fn->getType() != PFT) |
| 5806 | return error(NameLoc, "type of definition and forward reference of '@" + |
| 5807 | Twine(NumberedVals.size()) + |
| 5808 | "' disagree: " |
| 5809 | "expected '" + |
| 5810 | getTypeString(PFT) + "' but was '" + |
| 5811 | getTypeString(Fn->getType()) + "'" ); |
| 5812 | ForwardRefValIDs.erase(I); |
| 5813 | } |
| 5814 | } |
| 5815 | |
| 5816 | if (!Fn) |
| 5817 | Fn = Function::Create(FT, GlobalValue::ExternalLinkage, AddrSpace, |
| 5818 | FunctionName, M); |
| 5819 | else // Move the forward-reference to the correct spot in the module. |
| 5820 | M->getFunctionList().splice(M->end(), M->getFunctionList(), Fn); |
| 5821 | |
| 5822 | assert(Fn->getAddressSpace() == AddrSpace && "Created function in wrong AS" ); |
| 5823 | |
| 5824 | if (FunctionName.empty()) |
| 5825 | NumberedVals.push_back(Fn); |
| 5826 | |
| 5827 | Fn->setLinkage((GlobalValue::LinkageTypes)Linkage); |
| 5828 | maybeSetDSOLocal(DSOLocal, *Fn); |
| 5829 | Fn->setVisibility((GlobalValue::VisibilityTypes)Visibility); |
| 5830 | Fn->setDLLStorageClass((GlobalValue::DLLStorageClassTypes)DLLStorageClass); |
| 5831 | Fn->setCallingConv(CC); |
| 5832 | Fn->setAttributes(PAL); |
| 5833 | Fn->setUnnamedAddr(UnnamedAddr); |
| 5834 | Fn->setAlignment(MaybeAlign(Alignment)); |
| 5835 | Fn->setSection(Section); |
| 5836 | Fn->setPartition(Partition); |
| 5837 | Fn->setComdat(C); |
| 5838 | Fn->setPersonalityFn(PersonalityFn); |
| 5839 | if (!GC.empty()) Fn->setGC(GC); |
| 5840 | Fn->setPrefixData(Prefix); |
| 5841 | Fn->setPrologueData(Prologue); |
| 5842 | ForwardRefAttrGroups[Fn] = FwdRefAttrGrps; |
| 5843 | |
| 5844 | // Add all of the arguments we parsed to the function. |
| 5845 | Function::arg_iterator ArgIt = Fn->arg_begin(); |
| 5846 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i, ++ArgIt) { |
| 5847 | // If the argument has a name, insert it into the argument symbol table. |
| 5848 | if (ArgList[i].Name.empty()) continue; |
| 5849 | |
| 5850 | // Set the name, if it conflicted, it will be auto-renamed. |
| 5851 | ArgIt->setName(ArgList[i].Name); |
| 5852 | |
| 5853 | if (ArgIt->getName() != ArgList[i].Name) |
| 5854 | return error(ArgList[i].Loc, |
| 5855 | "redefinition of argument '%" + ArgList[i].Name + "'" ); |
| 5856 | } |
| 5857 | |
| 5858 | if (IsDefine) |
| 5859 | return false; |
| 5860 | |
| 5861 | // Check the declaration has no block address forward references. |
| 5862 | ValID ID; |
| 5863 | if (FunctionName.empty()) { |
| 5864 | ID.Kind = ValID::t_GlobalID; |
| 5865 | ID.UIntVal = NumberedVals.size() - 1; |
| 5866 | } else { |
| 5867 | ID.Kind = ValID::t_GlobalName; |
| 5868 | ID.StrVal = FunctionName; |
| 5869 | } |
| 5870 | auto Blocks = ForwardRefBlockAddresses.find(ID); |
| 5871 | if (Blocks != ForwardRefBlockAddresses.end()) |
| 5872 | return error(Blocks->first.Loc, |
| 5873 | "cannot take blockaddress inside a declaration" ); |
| 5874 | return false; |
| 5875 | } |
| 5876 | |
| 5877 | bool LLParser::PerFunctionState::resolveForwardRefBlockAddresses() { |
| 5878 | ValID ID; |
| 5879 | if (FunctionNumber == -1) { |
| 5880 | ID.Kind = ValID::t_GlobalName; |
| 5881 | ID.StrVal = std::string(F.getName()); |
| 5882 | } else { |
| 5883 | ID.Kind = ValID::t_GlobalID; |
| 5884 | ID.UIntVal = FunctionNumber; |
| 5885 | } |
| 5886 | |
| 5887 | auto Blocks = P.ForwardRefBlockAddresses.find(ID); |
| 5888 | if (Blocks == P.ForwardRefBlockAddresses.end()) |
| 5889 | return false; |
| 5890 | |
| 5891 | for (const auto &I : Blocks->second) { |
| 5892 | const ValID &BBID = I.first; |
| 5893 | GlobalValue *GV = I.second; |
| 5894 | |
| 5895 | assert((BBID.Kind == ValID::t_LocalID || BBID.Kind == ValID::t_LocalName) && |
| 5896 | "Expected local id or name" ); |
| 5897 | BasicBlock *BB; |
| 5898 | if (BBID.Kind == ValID::t_LocalName) |
| 5899 | BB = getBB(BBID.StrVal, BBID.Loc); |
| 5900 | else |
| 5901 | BB = getBB(BBID.UIntVal, BBID.Loc); |
| 5902 | if (!BB) |
| 5903 | return P.error(BBID.Loc, "referenced value is not a basic block" ); |
| 5904 | |
| 5905 | GV->replaceAllUsesWith(BlockAddress::get(&F, BB)); |
| 5906 | GV->eraseFromParent(); |
| 5907 | } |
| 5908 | |
| 5909 | P.ForwardRefBlockAddresses.erase(Blocks); |
| 5910 | return false; |
| 5911 | } |
| 5912 | |
| 5913 | /// parseFunctionBody |
| 5914 | /// ::= '{' BasicBlock+ UseListOrderDirective* '}' |
| 5915 | bool LLParser::parseFunctionBody(Function &Fn) { |
| 5916 | if (Lex.getKind() != lltok::lbrace) |
| 5917 | return tokError("expected '{' in function body" ); |
| 5918 | Lex.Lex(); // eat the {. |
| 5919 | |
| 5920 | int FunctionNumber = -1; |
| 5921 | if (!Fn.hasName()) FunctionNumber = NumberedVals.size()-1; |
| 5922 | |
| 5923 | PerFunctionState PFS(*this, Fn, FunctionNumber); |
| 5924 | |
| 5925 | // Resolve block addresses and allow basic blocks to be forward-declared |
| 5926 | // within this function. |
| 5927 | if (PFS.resolveForwardRefBlockAddresses()) |
| 5928 | return true; |
| 5929 | SaveAndRestore<PerFunctionState *> ScopeExit(BlockAddressPFS, &PFS); |
| 5930 | |
| 5931 | // We need at least one basic block. |
| 5932 | if (Lex.getKind() == lltok::rbrace || Lex.getKind() == lltok::kw_uselistorder) |
| 5933 | return tokError("function body requires at least one basic block" ); |
| 5934 | |
| 5935 | while (Lex.getKind() != lltok::rbrace && |
| 5936 | Lex.getKind() != lltok::kw_uselistorder) |
| 5937 | if (parseBasicBlock(PFS)) |
| 5938 | return true; |
| 5939 | |
| 5940 | while (Lex.getKind() != lltok::rbrace) |
| 5941 | if (parseUseListOrder(&PFS)) |
| 5942 | return true; |
| 5943 | |
| 5944 | // Eat the }. |
| 5945 | Lex.Lex(); |
| 5946 | |
| 5947 | // Verify function is ok. |
| 5948 | return PFS.finishFunction(); |
| 5949 | } |
| 5950 | |
| 5951 | /// parseBasicBlock |
| 5952 | /// ::= (LabelStr|LabelID)? Instruction* |
| 5953 | bool LLParser::parseBasicBlock(PerFunctionState &PFS) { |
| 5954 | // If this basic block starts out with a name, remember it. |
| 5955 | std::string Name; |
| 5956 | int NameID = -1; |
| 5957 | LocTy NameLoc = Lex.getLoc(); |
| 5958 | if (Lex.getKind() == lltok::LabelStr) { |
| 5959 | Name = Lex.getStrVal(); |
| 5960 | Lex.Lex(); |
| 5961 | } else if (Lex.getKind() == lltok::LabelID) { |
| 5962 | NameID = Lex.getUIntVal(); |
| 5963 | Lex.Lex(); |
| 5964 | } |
| 5965 | |
| 5966 | BasicBlock *BB = PFS.defineBB(Name, NameID, NameLoc); |
| 5967 | if (!BB) |
| 5968 | return true; |
| 5969 | |
| 5970 | std::string NameStr; |
| 5971 | |
| 5972 | // parse the instructions in this block until we get a terminator. |
| 5973 | Instruction *Inst; |
| 5974 | do { |
| 5975 | // This instruction may have three possibilities for a name: a) none |
| 5976 | // specified, b) name specified "%foo =", c) number specified: "%4 =". |
| 5977 | LocTy NameLoc = Lex.getLoc(); |
| 5978 | int NameID = -1; |
| 5979 | NameStr = "" ; |
| 5980 | |
| 5981 | if (Lex.getKind() == lltok::LocalVarID) { |
| 5982 | NameID = Lex.getUIntVal(); |
| 5983 | Lex.Lex(); |
| 5984 | if (parseToken(lltok::equal, "expected '=' after instruction id" )) |
| 5985 | return true; |
| 5986 | } else if (Lex.getKind() == lltok::LocalVar) { |
| 5987 | NameStr = Lex.getStrVal(); |
| 5988 | Lex.Lex(); |
| 5989 | if (parseToken(lltok::equal, "expected '=' after instruction name" )) |
| 5990 | return true; |
| 5991 | } |
| 5992 | |
| 5993 | switch (parseInstruction(Inst, BB, PFS)) { |
| 5994 | default: |
| 5995 | llvm_unreachable("Unknown parseInstruction result!" ); |
| 5996 | case InstError: return true; |
| 5997 | case InstNormal: |
| 5998 | BB->getInstList().push_back(Inst); |
| 5999 | |
| 6000 | // With a normal result, we check to see if the instruction is followed by |
| 6001 | // a comma and metadata. |
| 6002 | if (EatIfPresent(lltok::comma)) |
| 6003 | if (parseInstructionMetadata(*Inst)) |
| 6004 | return true; |
| 6005 | break; |
| 6006 | case InstExtraComma: |
| 6007 | BB->getInstList().push_back(Inst); |
| 6008 | |
| 6009 | // If the instruction parser ate an extra comma at the end of it, it |
| 6010 | // *must* be followed by metadata. |
| 6011 | if (parseInstructionMetadata(*Inst)) |
| 6012 | return true; |
| 6013 | break; |
| 6014 | } |
| 6015 | |
| 6016 | // Set the name on the instruction. |
| 6017 | if (PFS.setInstName(NameID, NameStr, NameLoc, Inst)) |
| 6018 | return true; |
| 6019 | } while (!Inst->isTerminator()); |
| 6020 | |
| 6021 | return false; |
| 6022 | } |
| 6023 | |
| 6024 | //===----------------------------------------------------------------------===// |
| 6025 | // Instruction Parsing. |
| 6026 | //===----------------------------------------------------------------------===// |
| 6027 | |
| 6028 | /// parseInstruction - parse one of the many different instructions. |
| 6029 | /// |
| 6030 | int LLParser::parseInstruction(Instruction *&Inst, BasicBlock *BB, |
| 6031 | PerFunctionState &PFS) { |
| 6032 | lltok::Kind Token = Lex.getKind(); |
| 6033 | if (Token == lltok::Eof) |
| 6034 | return tokError("found end of file when expecting more instructions" ); |
| 6035 | LocTy Loc = Lex.getLoc(); |
| 6036 | unsigned KeywordVal = Lex.getUIntVal(); |
| 6037 | Lex.Lex(); // Eat the keyword. |
| 6038 | |
| 6039 | switch (Token) { |
| 6040 | default: |
| 6041 | return error(Loc, "expected instruction opcode" ); |
| 6042 | // Terminator Instructions. |
| 6043 | case lltok::kw_unreachable: Inst = new UnreachableInst(Context); return false; |
| 6044 | case lltok::kw_ret: |
| 6045 | return parseRet(Inst, BB, PFS); |
| 6046 | case lltok::kw_br: |
| 6047 | return parseBr(Inst, PFS); |
| 6048 | case lltok::kw_switch: |
| 6049 | return parseSwitch(Inst, PFS); |
| 6050 | case lltok::kw_indirectbr: |
| 6051 | return parseIndirectBr(Inst, PFS); |
| 6052 | case lltok::kw_invoke: |
| 6053 | return parseInvoke(Inst, PFS); |
| 6054 | case lltok::kw_resume: |
| 6055 | return parseResume(Inst, PFS); |
| 6056 | case lltok::kw_cleanupret: |
| 6057 | return parseCleanupRet(Inst, PFS); |
| 6058 | case lltok::kw_catchret: |
| 6059 | return parseCatchRet(Inst, PFS); |
| 6060 | case lltok::kw_catchswitch: |
| 6061 | return parseCatchSwitch(Inst, PFS); |
| 6062 | case lltok::kw_catchpad: |
| 6063 | return parseCatchPad(Inst, PFS); |
| 6064 | case lltok::kw_cleanuppad: |
| 6065 | return parseCleanupPad(Inst, PFS); |
| 6066 | case lltok::kw_callbr: |
| 6067 | return parseCallBr(Inst, PFS); |
| 6068 | // Unary Operators. |
| 6069 | case lltok::kw_fneg: { |
| 6070 | FastMathFlags FMF = EatFastMathFlagsIfPresent(); |
| 6071 | int Res = parseUnaryOp(Inst, PFS, KeywordVal, /*IsFP*/ true); |
| 6072 | if (Res != 0) |
| 6073 | return Res; |
| 6074 | if (FMF.any()) |
| 6075 | Inst->setFastMathFlags(FMF); |
| 6076 | return false; |
| 6077 | } |
| 6078 | // Binary Operators. |
| 6079 | case lltok::kw_add: |
| 6080 | case lltok::kw_sub: |
| 6081 | case lltok::kw_mul: |
| 6082 | case lltok::kw_shl: { |
| 6083 | bool NUW = EatIfPresent(lltok::kw_nuw); |
| 6084 | bool NSW = EatIfPresent(lltok::kw_nsw); |
| 6085 | if (!NUW) NUW = EatIfPresent(lltok::kw_nuw); |
| 6086 | |
| 6087 | if (parseArithmetic(Inst, PFS, KeywordVal, /*IsFP*/ false)) |
| 6088 | return true; |
| 6089 | |
| 6090 | if (NUW) cast<BinaryOperator>(Inst)->setHasNoUnsignedWrap(true); |
| 6091 | if (NSW) cast<BinaryOperator>(Inst)->setHasNoSignedWrap(true); |
| 6092 | return false; |
| 6093 | } |
| 6094 | case lltok::kw_fadd: |
| 6095 | case lltok::kw_fsub: |
| 6096 | case lltok::kw_fmul: |
| 6097 | case lltok::kw_fdiv: |
| 6098 | case lltok::kw_frem: { |
| 6099 | FastMathFlags FMF = EatFastMathFlagsIfPresent(); |
| 6100 | int Res = parseArithmetic(Inst, PFS, KeywordVal, /*IsFP*/ true); |
| 6101 | if (Res != 0) |
| 6102 | return Res; |
| 6103 | if (FMF.any()) |
| 6104 | Inst->setFastMathFlags(FMF); |
| 6105 | return 0; |
| 6106 | } |
| 6107 | |
| 6108 | case lltok::kw_sdiv: |
| 6109 | case lltok::kw_udiv: |
| 6110 | case lltok::kw_lshr: |
| 6111 | case lltok::kw_ashr: { |
| 6112 | bool Exact = EatIfPresent(lltok::kw_exact); |
| 6113 | |
| 6114 | if (parseArithmetic(Inst, PFS, KeywordVal, /*IsFP*/ false)) |
| 6115 | return true; |
| 6116 | if (Exact) cast<BinaryOperator>(Inst)->setIsExact(true); |
| 6117 | return false; |
| 6118 | } |
| 6119 | |
| 6120 | case lltok::kw_urem: |
| 6121 | case lltok::kw_srem: |
| 6122 | return parseArithmetic(Inst, PFS, KeywordVal, |
| 6123 | /*IsFP*/ false); |
| 6124 | case lltok::kw_and: |
| 6125 | case lltok::kw_or: |
| 6126 | case lltok::kw_xor: |
| 6127 | return parseLogical(Inst, PFS, KeywordVal); |
| 6128 | case lltok::kw_icmp: |
| 6129 | return parseCompare(Inst, PFS, KeywordVal); |
| 6130 | case lltok::kw_fcmp: { |
| 6131 | FastMathFlags FMF = EatFastMathFlagsIfPresent(); |
| 6132 | int Res = parseCompare(Inst, PFS, KeywordVal); |
| 6133 | if (Res != 0) |
| 6134 | return Res; |
| 6135 | if (FMF.any()) |
| 6136 | Inst->setFastMathFlags(FMF); |
| 6137 | return 0; |
| 6138 | } |
| 6139 | |
| 6140 | // Casts. |
| 6141 | case lltok::kw_trunc: |
| 6142 | case lltok::kw_zext: |
| 6143 | case lltok::kw_sext: |
| 6144 | case lltok::kw_fptrunc: |
| 6145 | case lltok::kw_fpext: |
| 6146 | case lltok::kw_bitcast: |
| 6147 | case lltok::kw_addrspacecast: |
| 6148 | case lltok::kw_uitofp: |
| 6149 | case lltok::kw_sitofp: |
| 6150 | case lltok::kw_fptoui: |
| 6151 | case lltok::kw_fptosi: |
| 6152 | case lltok::kw_inttoptr: |
| 6153 | case lltok::kw_ptrtoint: |
| 6154 | return parseCast(Inst, PFS, KeywordVal); |
| 6155 | // Other. |
| 6156 | case lltok::kw_select: { |
| 6157 | FastMathFlags FMF = EatFastMathFlagsIfPresent(); |
| 6158 | int Res = parseSelect(Inst, PFS); |
| 6159 | if (Res != 0) |
| 6160 | return Res; |
| 6161 | if (FMF.any()) { |
| 6162 | if (!isa<FPMathOperator>(Inst)) |
| 6163 | return error(Loc, "fast-math-flags specified for select without " |
| 6164 | "floating-point scalar or vector return type" ); |
| 6165 | Inst->setFastMathFlags(FMF); |
| 6166 | } |
| 6167 | return 0; |
| 6168 | } |
| 6169 | case lltok::kw_va_arg: |
| 6170 | return parseVAArg(Inst, PFS); |
| 6171 | case lltok::kw_extractelement: |
| 6172 | return parseExtractElement(Inst, PFS); |
| 6173 | case lltok::kw_insertelement: |
| 6174 | return parseInsertElement(Inst, PFS); |
| 6175 | case lltok::kw_shufflevector: |
| 6176 | return parseShuffleVector(Inst, PFS); |
| 6177 | case lltok::kw_phi: { |
| 6178 | FastMathFlags FMF = EatFastMathFlagsIfPresent(); |
| 6179 | int Res = parsePHI(Inst, PFS); |
| 6180 | if (Res != 0) |
| 6181 | return Res; |
| 6182 | if (FMF.any()) { |
| 6183 | if (!isa<FPMathOperator>(Inst)) |
| 6184 | return error(Loc, "fast-math-flags specified for phi without " |
| 6185 | "floating-point scalar or vector return type" ); |
| 6186 | Inst->setFastMathFlags(FMF); |
| 6187 | } |
| 6188 | return 0; |
| 6189 | } |
| 6190 | case lltok::kw_landingpad: |
| 6191 | return parseLandingPad(Inst, PFS); |
| 6192 | case lltok::kw_freeze: |
| 6193 | return parseFreeze(Inst, PFS); |
| 6194 | // Call. |
| 6195 | case lltok::kw_call: |
| 6196 | return parseCall(Inst, PFS, CallInst::TCK_None); |
| 6197 | case lltok::kw_tail: |
| 6198 | return parseCall(Inst, PFS, CallInst::TCK_Tail); |
| 6199 | case lltok::kw_musttail: |
| 6200 | return parseCall(Inst, PFS, CallInst::TCK_MustTail); |
| 6201 | case lltok::kw_notail: |
| 6202 | return parseCall(Inst, PFS, CallInst::TCK_NoTail); |
| 6203 | // Memory. |
| 6204 | case lltok::kw_alloca: |
| 6205 | return parseAlloc(Inst, PFS); |
| 6206 | case lltok::kw_load: |
| 6207 | return parseLoad(Inst, PFS); |
| 6208 | case lltok::kw_store: |
| 6209 | return parseStore(Inst, PFS); |
| 6210 | case lltok::kw_cmpxchg: |
| 6211 | return parseCmpXchg(Inst, PFS); |
| 6212 | case lltok::kw_atomicrmw: |
| 6213 | return parseAtomicRMW(Inst, PFS); |
| 6214 | case lltok::kw_fence: |
| 6215 | return parseFence(Inst, PFS); |
| 6216 | case lltok::kw_getelementptr: |
| 6217 | return parseGetElementPtr(Inst, PFS); |
| 6218 | case lltok::kw_extractvalue: |
| 6219 | return parseExtractValue(Inst, PFS); |
| 6220 | case lltok::kw_insertvalue: |
| 6221 | return parseInsertValue(Inst, PFS); |
| 6222 | } |
| 6223 | } |
| 6224 | |
| 6225 | /// parseCmpPredicate - parse an integer or fp predicate, based on Kind. |
| 6226 | bool LLParser::parseCmpPredicate(unsigned &P, unsigned Opc) { |
| 6227 | if (Opc == Instruction::FCmp) { |
| 6228 | switch (Lex.getKind()) { |
| 6229 | default: |
| 6230 | return tokError("expected fcmp predicate (e.g. 'oeq')" ); |
| 6231 | case lltok::kw_oeq: P = CmpInst::FCMP_OEQ; break; |
| 6232 | case lltok::kw_one: P = CmpInst::FCMP_ONE; break; |
| 6233 | case lltok::kw_olt: P = CmpInst::FCMP_OLT; break; |
| 6234 | case lltok::kw_ogt: P = CmpInst::FCMP_OGT; break; |
| 6235 | case lltok::kw_ole: P = CmpInst::FCMP_OLE; break; |
| 6236 | case lltok::kw_oge: P = CmpInst::FCMP_OGE; break; |
| 6237 | case lltok::kw_ord: P = CmpInst::FCMP_ORD; break; |
| 6238 | case lltok::kw_uno: P = CmpInst::FCMP_UNO; break; |
| 6239 | case lltok::kw_ueq: P = CmpInst::FCMP_UEQ; break; |
| 6240 | case lltok::kw_une: P = CmpInst::FCMP_UNE; break; |
| 6241 | case lltok::kw_ult: P = CmpInst::FCMP_ULT; break; |
| 6242 | case lltok::kw_ugt: P = CmpInst::FCMP_UGT; break; |
| 6243 | case lltok::kw_ule: P = CmpInst::FCMP_ULE; break; |
| 6244 | case lltok::kw_uge: P = CmpInst::FCMP_UGE; break; |
| 6245 | case lltok::kw_true: P = CmpInst::FCMP_TRUE; break; |
| 6246 | case lltok::kw_false: P = CmpInst::FCMP_FALSE; break; |
| 6247 | } |
| 6248 | } else { |
| 6249 | switch (Lex.getKind()) { |
| 6250 | default: |
| 6251 | return tokError("expected icmp predicate (e.g. 'eq')" ); |
| 6252 | case lltok::kw_eq: P = CmpInst::ICMP_EQ; break; |
| 6253 | case lltok::kw_ne: P = CmpInst::ICMP_NE; break; |
| 6254 | case lltok::kw_slt: P = CmpInst::ICMP_SLT; break; |
| 6255 | case lltok::kw_sgt: P = CmpInst::ICMP_SGT; break; |
| 6256 | case lltok::kw_sle: P = CmpInst::ICMP_SLE; break; |
| 6257 | case lltok::kw_sge: P = CmpInst::ICMP_SGE; break; |
| 6258 | case lltok::kw_ult: P = CmpInst::ICMP_ULT; break; |
| 6259 | case lltok::kw_ugt: P = CmpInst::ICMP_UGT; break; |
| 6260 | case lltok::kw_ule: P = CmpInst::ICMP_ULE; break; |
| 6261 | case lltok::kw_uge: P = CmpInst::ICMP_UGE; break; |
| 6262 | } |
| 6263 | } |
| 6264 | Lex.Lex(); |
| 6265 | return false; |
| 6266 | } |
| 6267 | |
| 6268 | //===----------------------------------------------------------------------===// |
| 6269 | // Terminator Instructions. |
| 6270 | //===----------------------------------------------------------------------===// |
| 6271 | |
| 6272 | /// parseRet - parse a return instruction. |
| 6273 | /// ::= 'ret' void (',' !dbg, !1)* |
| 6274 | /// ::= 'ret' TypeAndValue (',' !dbg, !1)* |
| 6275 | bool LLParser::parseRet(Instruction *&Inst, BasicBlock *BB, |
| 6276 | PerFunctionState &PFS) { |
| 6277 | SMLoc TypeLoc = Lex.getLoc(); |
| 6278 | Type *Ty = nullptr; |
| 6279 | if (parseType(Ty, true /*void allowed*/)) |
| 6280 | return true; |
| 6281 | |
| 6282 | Type *ResType = PFS.getFunction().getReturnType(); |
| 6283 | |
| 6284 | if (Ty->isVoidTy()) { |
| 6285 | if (!ResType->isVoidTy()) |
| 6286 | return error(TypeLoc, "value doesn't match function result type '" + |
| 6287 | getTypeString(ResType) + "'" ); |
| 6288 | |
| 6289 | Inst = ReturnInst::Create(Context); |
| 6290 | return false; |
| 6291 | } |
| 6292 | |
| 6293 | Value *RV; |
| 6294 | if (parseValue(Ty, RV, PFS)) |
| 6295 | return true; |
| 6296 | |
| 6297 | if (ResType != RV->getType()) |
| 6298 | return error(TypeLoc, "value doesn't match function result type '" + |
| 6299 | getTypeString(ResType) + "'" ); |
| 6300 | |
| 6301 | Inst = ReturnInst::Create(Context, RV); |
| 6302 | return false; |
| 6303 | } |
| 6304 | |
| 6305 | /// parseBr |
| 6306 | /// ::= 'br' TypeAndValue |
| 6307 | /// ::= 'br' TypeAndValue ',' TypeAndValue ',' TypeAndValue |
| 6308 | bool LLParser::parseBr(Instruction *&Inst, PerFunctionState &PFS) { |
| 6309 | LocTy Loc, Loc2; |
| 6310 | Value *Op0; |
| 6311 | BasicBlock *Op1, *Op2; |
| 6312 | if (parseTypeAndValue(Op0, Loc, PFS)) |
| 6313 | return true; |
| 6314 | |
| 6315 | if (BasicBlock *BB = dyn_cast<BasicBlock>(Op0)) { |
| 6316 | Inst = BranchInst::Create(BB); |
| 6317 | return false; |
| 6318 | } |
| 6319 | |
| 6320 | if (Op0->getType() != Type::getInt1Ty(Context)) |
| 6321 | return error(Loc, "branch condition must have 'i1' type" ); |
| 6322 | |
| 6323 | if (parseToken(lltok::comma, "expected ',' after branch condition" ) || |
| 6324 | parseTypeAndBasicBlock(Op1, Loc, PFS) || |
| 6325 | parseToken(lltok::comma, "expected ',' after true destination" ) || |
| 6326 | parseTypeAndBasicBlock(Op2, Loc2, PFS)) |
| 6327 | return true; |
| 6328 | |
| 6329 | Inst = BranchInst::Create(Op1, Op2, Op0); |
| 6330 | return false; |
| 6331 | } |
| 6332 | |
| 6333 | /// parseSwitch |
| 6334 | /// Instruction |
| 6335 | /// ::= 'switch' TypeAndValue ',' TypeAndValue '[' JumpTable ']' |
| 6336 | /// JumpTable |
| 6337 | /// ::= (TypeAndValue ',' TypeAndValue)* |
| 6338 | bool LLParser::parseSwitch(Instruction *&Inst, PerFunctionState &PFS) { |
| 6339 | LocTy CondLoc, BBLoc; |
| 6340 | Value *Cond; |
| 6341 | BasicBlock *DefaultBB; |
| 6342 | if (parseTypeAndValue(Cond, CondLoc, PFS) || |
| 6343 | parseToken(lltok::comma, "expected ',' after switch condition" ) || |
| 6344 | parseTypeAndBasicBlock(DefaultBB, BBLoc, PFS) || |
| 6345 | parseToken(lltok::lsquare, "expected '[' with switch table" )) |
| 6346 | return true; |
| 6347 | |
| 6348 | if (!Cond->getType()->isIntegerTy()) |
| 6349 | return error(CondLoc, "switch condition must have integer type" ); |
| 6350 | |
| 6351 | // parse the jump table pairs. |
| 6352 | SmallPtrSet<Value*, 32> SeenCases; |
| 6353 | SmallVector<std::pair<ConstantInt*, BasicBlock*>, 32> Table; |
| 6354 | while (Lex.getKind() != lltok::rsquare) { |
| 6355 | Value *Constant; |
| 6356 | BasicBlock *DestBB; |
| 6357 | |
| 6358 | if (parseTypeAndValue(Constant, CondLoc, PFS) || |
| 6359 | parseToken(lltok::comma, "expected ',' after case value" ) || |
| 6360 | parseTypeAndBasicBlock(DestBB, PFS)) |
| 6361 | return true; |
| 6362 | |
| 6363 | if (!SeenCases.insert(Constant).second) |
| 6364 | return error(CondLoc, "duplicate case value in switch" ); |
| 6365 | if (!isa<ConstantInt>(Constant)) |
| 6366 | return error(CondLoc, "case value is not a constant integer" ); |
| 6367 | |
| 6368 | Table.push_back(std::make_pair(cast<ConstantInt>(Constant), DestBB)); |
| 6369 | } |
| 6370 | |
| 6371 | Lex.Lex(); // Eat the ']'. |
| 6372 | |
| 6373 | SwitchInst *SI = SwitchInst::Create(Cond, DefaultBB, Table.size()); |
| 6374 | for (unsigned i = 0, e = Table.size(); i != e; ++i) |
| 6375 | SI->addCase(Table[i].first, Table[i].second); |
| 6376 | Inst = SI; |
| 6377 | return false; |
| 6378 | } |
| 6379 | |
| 6380 | /// parseIndirectBr |
| 6381 | /// Instruction |
| 6382 | /// ::= 'indirectbr' TypeAndValue ',' '[' LabelList ']' |
| 6383 | bool LLParser::parseIndirectBr(Instruction *&Inst, PerFunctionState &PFS) { |
| 6384 | LocTy AddrLoc; |
| 6385 | Value *Address; |
| 6386 | if (parseTypeAndValue(Address, AddrLoc, PFS) || |
| 6387 | parseToken(lltok::comma, "expected ',' after indirectbr address" ) || |
| 6388 | parseToken(lltok::lsquare, "expected '[' with indirectbr" )) |
| 6389 | return true; |
| 6390 | |
| 6391 | if (!Address->getType()->isPointerTy()) |
| 6392 | return error(AddrLoc, "indirectbr address must have pointer type" ); |
| 6393 | |
| 6394 | // parse the destination list. |
| 6395 | SmallVector<BasicBlock*, 16> DestList; |
| 6396 | |
| 6397 | if (Lex.getKind() != lltok::rsquare) { |
| 6398 | BasicBlock *DestBB; |
| 6399 | if (parseTypeAndBasicBlock(DestBB, PFS)) |
| 6400 | return true; |
| 6401 | DestList.push_back(DestBB); |
| 6402 | |
| 6403 | while (EatIfPresent(lltok::comma)) { |
| 6404 | if (parseTypeAndBasicBlock(DestBB, PFS)) |
| 6405 | return true; |
| 6406 | DestList.push_back(DestBB); |
| 6407 | } |
| 6408 | } |
| 6409 | |
| 6410 | if (parseToken(lltok::rsquare, "expected ']' at end of block list" )) |
| 6411 | return true; |
| 6412 | |
| 6413 | IndirectBrInst *IBI = IndirectBrInst::Create(Address, DestList.size()); |
| 6414 | for (unsigned i = 0, e = DestList.size(); i != e; ++i) |
| 6415 | IBI->addDestination(DestList[i]); |
| 6416 | Inst = IBI; |
| 6417 | return false; |
| 6418 | } |
| 6419 | |
| 6420 | /// parseInvoke |
| 6421 | /// ::= 'invoke' OptionalCallingConv OptionalAttrs Type Value ParamList |
| 6422 | /// OptionalAttrs 'to' TypeAndValue 'unwind' TypeAndValue |
| 6423 | bool LLParser::parseInvoke(Instruction *&Inst, PerFunctionState &PFS) { |
| 6424 | LocTy CallLoc = Lex.getLoc(); |
| 6425 | AttrBuilder RetAttrs, FnAttrs; |
| 6426 | std::vector<unsigned> FwdRefAttrGrps; |
| 6427 | LocTy NoBuiltinLoc; |
| 6428 | unsigned CC; |
| 6429 | unsigned InvokeAddrSpace; |
| 6430 | Type *RetType = nullptr; |
| 6431 | LocTy RetTypeLoc; |
| 6432 | ValID CalleeID; |
| 6433 | SmallVector<ParamInfo, 16> ArgList; |
| 6434 | SmallVector<OperandBundleDef, 2> BundleList; |
| 6435 | |
| 6436 | BasicBlock *NormalBB, *UnwindBB; |
| 6437 | if (parseOptionalCallingConv(CC) || parseOptionalReturnAttrs(RetAttrs) || |
| 6438 | parseOptionalProgramAddrSpace(InvokeAddrSpace) || |
| 6439 | parseType(RetType, RetTypeLoc, true /*void allowed*/) || |
| 6440 | parseValID(CalleeID) || parseParameterList(ArgList, PFS) || |
| 6441 | parseFnAttributeValuePairs(FnAttrs, FwdRefAttrGrps, false, |
| 6442 | NoBuiltinLoc) || |
| 6443 | parseOptionalOperandBundles(BundleList, PFS) || |
| 6444 | parseToken(lltok::kw_to, "expected 'to' in invoke" ) || |
| 6445 | parseTypeAndBasicBlock(NormalBB, PFS) || |
| 6446 | parseToken(lltok::kw_unwind, "expected 'unwind' in invoke" ) || |
| 6447 | parseTypeAndBasicBlock(UnwindBB, PFS)) |
| 6448 | return true; |
| 6449 | |
| 6450 | // If RetType is a non-function pointer type, then this is the short syntax |
| 6451 | // for the call, which means that RetType is just the return type. Infer the |
| 6452 | // rest of the function argument types from the arguments that are present. |
| 6453 | FunctionType *Ty = dyn_cast<FunctionType>(RetType); |
| 6454 | if (!Ty) { |
| 6455 | // Pull out the types of all of the arguments... |
| 6456 | std::vector<Type*> ParamTypes; |
| 6457 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i) |
| 6458 | ParamTypes.push_back(ArgList[i].V->getType()); |
| 6459 | |
| 6460 | if (!FunctionType::isValidReturnType(RetType)) |
| 6461 | return error(RetTypeLoc, "Invalid result type for LLVM function" ); |
| 6462 | |
| 6463 | Ty = FunctionType::get(RetType, ParamTypes, false); |
| 6464 | } |
| 6465 | |
| 6466 | CalleeID.FTy = Ty; |
| 6467 | |
| 6468 | // Look up the callee. |
| 6469 | Value *Callee; |
| 6470 | if (convertValIDToValue(PointerType::get(Ty, InvokeAddrSpace), CalleeID, |
| 6471 | Callee, &PFS, /*IsCall=*/true)) |
| 6472 | return true; |
| 6473 | |
| 6474 | // Set up the Attribute for the function. |
| 6475 | SmallVector<Value *, 8> Args; |
| 6476 | SmallVector<AttributeSet, 8> ArgAttrs; |
| 6477 | |
| 6478 | // Loop through FunctionType's arguments and ensure they are specified |
| 6479 | // correctly. Also, gather any parameter attributes. |
| 6480 | FunctionType::param_iterator I = Ty->param_begin(); |
| 6481 | FunctionType::param_iterator E = Ty->param_end(); |
| 6482 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { |
| 6483 | Type *ExpectedTy = nullptr; |
| 6484 | if (I != E) { |
| 6485 | ExpectedTy = *I++; |
| 6486 | } else if (!Ty->isVarArg()) { |
| 6487 | return error(ArgList[i].Loc, "too many arguments specified" ); |
| 6488 | } |
| 6489 | |
| 6490 | if (ExpectedTy && ExpectedTy != ArgList[i].V->getType()) |
| 6491 | return error(ArgList[i].Loc, "argument is not of expected type '" + |
| 6492 | getTypeString(ExpectedTy) + "'" ); |
| 6493 | Args.push_back(ArgList[i].V); |
| 6494 | ArgAttrs.push_back(ArgList[i].Attrs); |
| 6495 | } |
| 6496 | |
| 6497 | if (I != E) |
| 6498 | return error(CallLoc, "not enough parameters specified for call" ); |
| 6499 | |
| 6500 | if (FnAttrs.hasAlignmentAttr()) |
| 6501 | return error(CallLoc, "invoke instructions may not have an alignment" ); |
| 6502 | |
| 6503 | // Finish off the Attribute and check them |
| 6504 | AttributeList PAL = |
| 6505 | AttributeList::get(Context, AttributeSet::get(Context, FnAttrs), |
| 6506 | AttributeSet::get(Context, RetAttrs), ArgAttrs); |
| 6507 | |
| 6508 | InvokeInst *II = |
| 6509 | InvokeInst::Create(Ty, Callee, NormalBB, UnwindBB, Args, BundleList); |
| 6510 | II->setCallingConv(CC); |
| 6511 | II->setAttributes(PAL); |
| 6512 | ForwardRefAttrGroups[II] = FwdRefAttrGrps; |
| 6513 | Inst = II; |
| 6514 | return false; |
| 6515 | } |
| 6516 | |
| 6517 | /// parseResume |
| 6518 | /// ::= 'resume' TypeAndValue |
| 6519 | bool LLParser::parseResume(Instruction *&Inst, PerFunctionState &PFS) { |
| 6520 | Value *Exn; LocTy ExnLoc; |
| 6521 | if (parseTypeAndValue(Exn, ExnLoc, PFS)) |
| 6522 | return true; |
| 6523 | |
| 6524 | ResumeInst *RI = ResumeInst::Create(Exn); |
| 6525 | Inst = RI; |
| 6526 | return false; |
| 6527 | } |
| 6528 | |
| 6529 | bool LLParser::parseExceptionArgs(SmallVectorImpl<Value *> &Args, |
| 6530 | PerFunctionState &PFS) { |
| 6531 | if (parseToken(lltok::lsquare, "expected '[' in catchpad/cleanuppad" )) |
| 6532 | return true; |
| 6533 | |
| 6534 | while (Lex.getKind() != lltok::rsquare) { |
| 6535 | // If this isn't the first argument, we need a comma. |
| 6536 | if (!Args.empty() && |
| 6537 | parseToken(lltok::comma, "expected ',' in argument list" )) |
| 6538 | return true; |
| 6539 | |
| 6540 | // parse the argument. |
| 6541 | LocTy ArgLoc; |
| 6542 | Type *ArgTy = nullptr; |
| 6543 | if (parseType(ArgTy, ArgLoc)) |
| 6544 | return true; |
| 6545 | |
| 6546 | Value *V; |
| 6547 | if (ArgTy->isMetadataTy()) { |
| 6548 | if (parseMetadataAsValue(V, PFS)) |
| 6549 | return true; |
| 6550 | } else { |
| 6551 | if (parseValue(ArgTy, V, PFS)) |
| 6552 | return true; |
| 6553 | } |
| 6554 | Args.push_back(V); |
| 6555 | } |
| 6556 | |
| 6557 | Lex.Lex(); // Lex the ']'. |
| 6558 | return false; |
| 6559 | } |
| 6560 | |
| 6561 | /// parseCleanupRet |
| 6562 | /// ::= 'cleanupret' from Value unwind ('to' 'caller' | TypeAndValue) |
| 6563 | bool LLParser::parseCleanupRet(Instruction *&Inst, PerFunctionState &PFS) { |
| 6564 | Value *CleanupPad = nullptr; |
| 6565 | |
| 6566 | if (parseToken(lltok::kw_from, "expected 'from' after cleanupret" )) |
| 6567 | return true; |
| 6568 | |
| 6569 | if (parseValue(Type::getTokenTy(Context), CleanupPad, PFS)) |
| 6570 | return true; |
| 6571 | |
| 6572 | if (parseToken(lltok::kw_unwind, "expected 'unwind' in cleanupret" )) |
| 6573 | return true; |
| 6574 | |
| 6575 | BasicBlock *UnwindBB = nullptr; |
| 6576 | if (Lex.getKind() == lltok::kw_to) { |
| 6577 | Lex.Lex(); |
| 6578 | if (parseToken(lltok::kw_caller, "expected 'caller' in cleanupret" )) |
| 6579 | return true; |
| 6580 | } else { |
| 6581 | if (parseTypeAndBasicBlock(UnwindBB, PFS)) { |
| 6582 | return true; |
| 6583 | } |
| 6584 | } |
| 6585 | |
| 6586 | Inst = CleanupReturnInst::Create(CleanupPad, UnwindBB); |
| 6587 | return false; |
| 6588 | } |
| 6589 | |
| 6590 | /// parseCatchRet |
| 6591 | /// ::= 'catchret' from Parent Value 'to' TypeAndValue |
| 6592 | bool LLParser::parseCatchRet(Instruction *&Inst, PerFunctionState &PFS) { |
| 6593 | Value *CatchPad = nullptr; |
| 6594 | |
| 6595 | if (parseToken(lltok::kw_from, "expected 'from' after catchret" )) |
| 6596 | return true; |
| 6597 | |
| 6598 | if (parseValue(Type::getTokenTy(Context), CatchPad, PFS)) |
| 6599 | return true; |
| 6600 | |
| 6601 | BasicBlock *BB; |
| 6602 | if (parseToken(lltok::kw_to, "expected 'to' in catchret" ) || |
| 6603 | parseTypeAndBasicBlock(BB, PFS)) |
| 6604 | return true; |
| 6605 | |
| 6606 | Inst = CatchReturnInst::Create(CatchPad, BB); |
| 6607 | return false; |
| 6608 | } |
| 6609 | |
| 6610 | /// parseCatchSwitch |
| 6611 | /// ::= 'catchswitch' within Parent |
| 6612 | bool LLParser::parseCatchSwitch(Instruction *&Inst, PerFunctionState &PFS) { |
| 6613 | Value *ParentPad; |
| 6614 | |
| 6615 | if (parseToken(lltok::kw_within, "expected 'within' after catchswitch" )) |
| 6616 | return true; |
| 6617 | |
| 6618 | if (Lex.getKind() != lltok::kw_none && Lex.getKind() != lltok::LocalVar && |
| 6619 | Lex.getKind() != lltok::LocalVarID) |
| 6620 | return tokError("expected scope value for catchswitch" ); |
| 6621 | |
| 6622 | if (parseValue(Type::getTokenTy(Context), ParentPad, PFS)) |
| 6623 | return true; |
| 6624 | |
| 6625 | if (parseToken(lltok::lsquare, "expected '[' with catchswitch labels" )) |
| 6626 | return true; |
| 6627 | |
| 6628 | SmallVector<BasicBlock *, 32> Table; |
| 6629 | do { |
| 6630 | BasicBlock *DestBB; |
| 6631 | if (parseTypeAndBasicBlock(DestBB, PFS)) |
| 6632 | return true; |
| 6633 | Table.push_back(DestBB); |
| 6634 | } while (EatIfPresent(lltok::comma)); |
| 6635 | |
| 6636 | if (parseToken(lltok::rsquare, "expected ']' after catchswitch labels" )) |
| 6637 | return true; |
| 6638 | |
| 6639 | if (parseToken(lltok::kw_unwind, "expected 'unwind' after catchswitch scope" )) |
| 6640 | return true; |
| 6641 | |
| 6642 | BasicBlock *UnwindBB = nullptr; |
| 6643 | if (EatIfPresent(lltok::kw_to)) { |
| 6644 | if (parseToken(lltok::kw_caller, "expected 'caller' in catchswitch" )) |
| 6645 | return true; |
| 6646 | } else { |
| 6647 | if (parseTypeAndBasicBlock(UnwindBB, PFS)) |
| 6648 | return true; |
| 6649 | } |
| 6650 | |
| 6651 | auto *CatchSwitch = |
| 6652 | CatchSwitchInst::Create(ParentPad, UnwindBB, Table.size()); |
| 6653 | for (BasicBlock *DestBB : Table) |
| 6654 | CatchSwitch->addHandler(DestBB); |
| 6655 | Inst = CatchSwitch; |
| 6656 | return false; |
| 6657 | } |
| 6658 | |
| 6659 | /// parseCatchPad |
| 6660 | /// ::= 'catchpad' ParamList 'to' TypeAndValue 'unwind' TypeAndValue |
| 6661 | bool LLParser::parseCatchPad(Instruction *&Inst, PerFunctionState &PFS) { |
| 6662 | Value *CatchSwitch = nullptr; |
| 6663 | |
| 6664 | if (parseToken(lltok::kw_within, "expected 'within' after catchpad" )) |
| 6665 | return true; |
| 6666 | |
| 6667 | if (Lex.getKind() != lltok::LocalVar && Lex.getKind() != lltok::LocalVarID) |
| 6668 | return tokError("expected scope value for catchpad" ); |
| 6669 | |
| 6670 | if (parseValue(Type::getTokenTy(Context), CatchSwitch, PFS)) |
| 6671 | return true; |
| 6672 | |
| 6673 | SmallVector<Value *, 8> Args; |
| 6674 | if (parseExceptionArgs(Args, PFS)) |
| 6675 | return true; |
| 6676 | |
| 6677 | Inst = CatchPadInst::Create(CatchSwitch, Args); |
| 6678 | return false; |
| 6679 | } |
| 6680 | |
| 6681 | /// parseCleanupPad |
| 6682 | /// ::= 'cleanuppad' within Parent ParamList |
| 6683 | bool LLParser::parseCleanupPad(Instruction *&Inst, PerFunctionState &PFS) { |
| 6684 | Value *ParentPad = nullptr; |
| 6685 | |
| 6686 | if (parseToken(lltok::kw_within, "expected 'within' after cleanuppad" )) |
| 6687 | return true; |
| 6688 | |
| 6689 | if (Lex.getKind() != lltok::kw_none && Lex.getKind() != lltok::LocalVar && |
| 6690 | Lex.getKind() != lltok::LocalVarID) |
| 6691 | return tokError("expected scope value for cleanuppad" ); |
| 6692 | |
| 6693 | if (parseValue(Type::getTokenTy(Context), ParentPad, PFS)) |
| 6694 | return true; |
| 6695 | |
| 6696 | SmallVector<Value *, 8> Args; |
| 6697 | if (parseExceptionArgs(Args, PFS)) |
| 6698 | return true; |
| 6699 | |
| 6700 | Inst = CleanupPadInst::Create(ParentPad, Args); |
| 6701 | return false; |
| 6702 | } |
| 6703 | |
| 6704 | //===----------------------------------------------------------------------===// |
| 6705 | // Unary Operators. |
| 6706 | //===----------------------------------------------------------------------===// |
| 6707 | |
| 6708 | /// parseUnaryOp |
| 6709 | /// ::= UnaryOp TypeAndValue ',' Value |
| 6710 | /// |
| 6711 | /// If IsFP is false, then any integer operand is allowed, if it is true, any fp |
| 6712 | /// operand is allowed. |
| 6713 | bool LLParser::parseUnaryOp(Instruction *&Inst, PerFunctionState &PFS, |
| 6714 | unsigned Opc, bool IsFP) { |
| 6715 | LocTy Loc; Value *LHS; |
| 6716 | if (parseTypeAndValue(LHS, Loc, PFS)) |
| 6717 | return true; |
| 6718 | |
| 6719 | bool Valid = IsFP ? LHS->getType()->isFPOrFPVectorTy() |
| 6720 | : LHS->getType()->isIntOrIntVectorTy(); |
| 6721 | |
| 6722 | if (!Valid) |
| 6723 | return error(Loc, "invalid operand type for instruction" ); |
| 6724 | |
| 6725 | Inst = UnaryOperator::Create((Instruction::UnaryOps)Opc, LHS); |
| 6726 | return false; |
| 6727 | } |
| 6728 | |
| 6729 | /// parseCallBr |
| 6730 | /// ::= 'callbr' OptionalCallingConv OptionalAttrs Type Value ParamList |
| 6731 | /// OptionalAttrs OptionalOperandBundles 'to' TypeAndValue |
| 6732 | /// '[' LabelList ']' |
| 6733 | bool LLParser::parseCallBr(Instruction *&Inst, PerFunctionState &PFS) { |
| 6734 | LocTy CallLoc = Lex.getLoc(); |
| 6735 | AttrBuilder RetAttrs, FnAttrs; |
| 6736 | std::vector<unsigned> FwdRefAttrGrps; |
| 6737 | LocTy NoBuiltinLoc; |
| 6738 | unsigned CC; |
| 6739 | Type *RetType = nullptr; |
| 6740 | LocTy RetTypeLoc; |
| 6741 | ValID CalleeID; |
| 6742 | SmallVector<ParamInfo, 16> ArgList; |
| 6743 | SmallVector<OperandBundleDef, 2> BundleList; |
| 6744 | |
| 6745 | BasicBlock *DefaultDest; |
| 6746 | if (parseOptionalCallingConv(CC) || parseOptionalReturnAttrs(RetAttrs) || |
| 6747 | parseType(RetType, RetTypeLoc, true /*void allowed*/) || |
| 6748 | parseValID(CalleeID) || parseParameterList(ArgList, PFS) || |
| 6749 | parseFnAttributeValuePairs(FnAttrs, FwdRefAttrGrps, false, |
| 6750 | NoBuiltinLoc) || |
| 6751 | parseOptionalOperandBundles(BundleList, PFS) || |
| 6752 | parseToken(lltok::kw_to, "expected 'to' in callbr" ) || |
| 6753 | parseTypeAndBasicBlock(DefaultDest, PFS) || |
| 6754 | parseToken(lltok::lsquare, "expected '[' in callbr" )) |
| 6755 | return true; |
| 6756 | |
| 6757 | // parse the destination list. |
| 6758 | SmallVector<BasicBlock *, 16> IndirectDests; |
| 6759 | |
| 6760 | if (Lex.getKind() != lltok::rsquare) { |
| 6761 | BasicBlock *DestBB; |
| 6762 | if (parseTypeAndBasicBlock(DestBB, PFS)) |
| 6763 | return true; |
| 6764 | IndirectDests.push_back(DestBB); |
| 6765 | |
| 6766 | while (EatIfPresent(lltok::comma)) { |
| 6767 | if (parseTypeAndBasicBlock(DestBB, PFS)) |
| 6768 | return true; |
| 6769 | IndirectDests.push_back(DestBB); |
| 6770 | } |
| 6771 | } |
| 6772 | |
| 6773 | if (parseToken(lltok::rsquare, "expected ']' at end of block list" )) |
| 6774 | return true; |
| 6775 | |
| 6776 | // If RetType is a non-function pointer type, then this is the short syntax |
| 6777 | // for the call, which means that RetType is just the return type. Infer the |
| 6778 | // rest of the function argument types from the arguments that are present. |
| 6779 | FunctionType *Ty = dyn_cast<FunctionType>(RetType); |
| 6780 | if (!Ty) { |
| 6781 | // Pull out the types of all of the arguments... |
| 6782 | std::vector<Type *> ParamTypes; |
| 6783 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i) |
| 6784 | ParamTypes.push_back(ArgList[i].V->getType()); |
| 6785 | |
| 6786 | if (!FunctionType::isValidReturnType(RetType)) |
| 6787 | return error(RetTypeLoc, "Invalid result type for LLVM function" ); |
| 6788 | |
| 6789 | Ty = FunctionType::get(RetType, ParamTypes, false); |
| 6790 | } |
| 6791 | |
| 6792 | CalleeID.FTy = Ty; |
| 6793 | |
| 6794 | // Look up the callee. |
| 6795 | Value *Callee; |
| 6796 | if (convertValIDToValue(PointerType::getUnqual(Ty), CalleeID, Callee, &PFS, |
| 6797 | /*IsCall=*/true)) |
| 6798 | return true; |
| 6799 | |
| 6800 | // Set up the Attribute for the function. |
| 6801 | SmallVector<Value *, 8> Args; |
| 6802 | SmallVector<AttributeSet, 8> ArgAttrs; |
| 6803 | |
| 6804 | // Loop through FunctionType's arguments and ensure they are specified |
| 6805 | // correctly. Also, gather any parameter attributes. |
| 6806 | FunctionType::param_iterator I = Ty->param_begin(); |
| 6807 | FunctionType::param_iterator E = Ty->param_end(); |
| 6808 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { |
| 6809 | Type *ExpectedTy = nullptr; |
| 6810 | if (I != E) { |
| 6811 | ExpectedTy = *I++; |
| 6812 | } else if (!Ty->isVarArg()) { |
| 6813 | return error(ArgList[i].Loc, "too many arguments specified" ); |
| 6814 | } |
| 6815 | |
| 6816 | if (ExpectedTy && ExpectedTy != ArgList[i].V->getType()) |
| 6817 | return error(ArgList[i].Loc, "argument is not of expected type '" + |
| 6818 | getTypeString(ExpectedTy) + "'" ); |
| 6819 | Args.push_back(ArgList[i].V); |
| 6820 | ArgAttrs.push_back(ArgList[i].Attrs); |
| 6821 | } |
| 6822 | |
| 6823 | if (I != E) |
| 6824 | return error(CallLoc, "not enough parameters specified for call" ); |
| 6825 | |
| 6826 | if (FnAttrs.hasAlignmentAttr()) |
| 6827 | return error(CallLoc, "callbr instructions may not have an alignment" ); |
| 6828 | |
| 6829 | // Finish off the Attribute and check them |
| 6830 | AttributeList PAL = |
| 6831 | AttributeList::get(Context, AttributeSet::get(Context, FnAttrs), |
| 6832 | AttributeSet::get(Context, RetAttrs), ArgAttrs); |
| 6833 | |
| 6834 | CallBrInst *CBI = |
| 6835 | CallBrInst::Create(Ty, Callee, DefaultDest, IndirectDests, Args, |
| 6836 | BundleList); |
| 6837 | CBI->setCallingConv(CC); |
| 6838 | CBI->setAttributes(PAL); |
| 6839 | ForwardRefAttrGroups[CBI] = FwdRefAttrGrps; |
| 6840 | Inst = CBI; |
| 6841 | return false; |
| 6842 | } |
| 6843 | |
| 6844 | //===----------------------------------------------------------------------===// |
| 6845 | // Binary Operators. |
| 6846 | //===----------------------------------------------------------------------===// |
| 6847 | |
| 6848 | /// parseArithmetic |
| 6849 | /// ::= ArithmeticOps TypeAndValue ',' Value |
| 6850 | /// |
| 6851 | /// If IsFP is false, then any integer operand is allowed, if it is true, any fp |
| 6852 | /// operand is allowed. |
| 6853 | bool LLParser::parseArithmetic(Instruction *&Inst, PerFunctionState &PFS, |
| 6854 | unsigned Opc, bool IsFP) { |
| 6855 | LocTy Loc; Value *LHS, *RHS; |
| 6856 | if (parseTypeAndValue(LHS, Loc, PFS) || |
| 6857 | parseToken(lltok::comma, "expected ',' in arithmetic operation" ) || |
| 6858 | parseValue(LHS->getType(), RHS, PFS)) |
| 6859 | return true; |
| 6860 | |
| 6861 | bool Valid = IsFP ? LHS->getType()->isFPOrFPVectorTy() |
| 6862 | : LHS->getType()->isIntOrIntVectorTy(); |
| 6863 | |
| 6864 | if (!Valid) |
| 6865 | return error(Loc, "invalid operand type for instruction" ); |
| 6866 | |
| 6867 | Inst = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS); |
| 6868 | return false; |
| 6869 | } |
| 6870 | |
| 6871 | /// parseLogical |
| 6872 | /// ::= ArithmeticOps TypeAndValue ',' Value { |
| 6873 | bool LLParser::parseLogical(Instruction *&Inst, PerFunctionState &PFS, |
| 6874 | unsigned Opc) { |
| 6875 | LocTy Loc; Value *LHS, *RHS; |
| 6876 | if (parseTypeAndValue(LHS, Loc, PFS) || |
| 6877 | parseToken(lltok::comma, "expected ',' in logical operation" ) || |
| 6878 | parseValue(LHS->getType(), RHS, PFS)) |
| 6879 | return true; |
| 6880 | |
| 6881 | if (!LHS->getType()->isIntOrIntVectorTy()) |
| 6882 | return error(Loc, |
| 6883 | "instruction requires integer or integer vector operands" ); |
| 6884 | |
| 6885 | Inst = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS); |
| 6886 | return false; |
| 6887 | } |
| 6888 | |
| 6889 | /// parseCompare |
| 6890 | /// ::= 'icmp' IPredicates TypeAndValue ',' Value |
| 6891 | /// ::= 'fcmp' FPredicates TypeAndValue ',' Value |
| 6892 | bool LLParser::parseCompare(Instruction *&Inst, PerFunctionState &PFS, |
| 6893 | unsigned Opc) { |
| 6894 | // parse the integer/fp comparison predicate. |
| 6895 | LocTy Loc; |
| 6896 | unsigned Pred; |
| 6897 | Value *LHS, *RHS; |
| 6898 | if (parseCmpPredicate(Pred, Opc) || parseTypeAndValue(LHS, Loc, PFS) || |
| 6899 | parseToken(lltok::comma, "expected ',' after compare value" ) || |
| 6900 | parseValue(LHS->getType(), RHS, PFS)) |
| 6901 | return true; |
| 6902 | |
| 6903 | if (Opc == Instruction::FCmp) { |
| 6904 | if (!LHS->getType()->isFPOrFPVectorTy()) |
| 6905 | return error(Loc, "fcmp requires floating point operands" ); |
| 6906 | Inst = new FCmpInst(CmpInst::Predicate(Pred), LHS, RHS); |
| 6907 | } else { |
| 6908 | assert(Opc == Instruction::ICmp && "Unknown opcode for CmpInst!" ); |
| 6909 | if (!LHS->getType()->isIntOrIntVectorTy() && |
| 6910 | !LHS->getType()->isPtrOrPtrVectorTy()) |
| 6911 | return error(Loc, "icmp requires integer operands" ); |
| 6912 | Inst = new ICmpInst(CmpInst::Predicate(Pred), LHS, RHS); |
| 6913 | } |
| 6914 | return false; |
| 6915 | } |
| 6916 | |
| 6917 | //===----------------------------------------------------------------------===// |
| 6918 | // Other Instructions. |
| 6919 | //===----------------------------------------------------------------------===// |
| 6920 | |
| 6921 | /// parseCast |
| 6922 | /// ::= CastOpc TypeAndValue 'to' Type |
| 6923 | bool LLParser::parseCast(Instruction *&Inst, PerFunctionState &PFS, |
| 6924 | unsigned Opc) { |
| 6925 | LocTy Loc; |
| 6926 | Value *Op; |
| 6927 | Type *DestTy = nullptr; |
| 6928 | if (parseTypeAndValue(Op, Loc, PFS) || |
| 6929 | parseToken(lltok::kw_to, "expected 'to' after cast value" ) || |
| 6930 | parseType(DestTy)) |
| 6931 | return true; |
| 6932 | |
| 6933 | if (!CastInst::castIsValid((Instruction::CastOps)Opc, Op, DestTy)) { |
| 6934 | CastInst::castIsValid((Instruction::CastOps)Opc, Op, DestTy); |
| 6935 | return error(Loc, "invalid cast opcode for cast from '" + |
| 6936 | getTypeString(Op->getType()) + "' to '" + |
| 6937 | getTypeString(DestTy) + "'" ); |
| 6938 | } |
| 6939 | Inst = CastInst::Create((Instruction::CastOps)Opc, Op, DestTy); |
| 6940 | return false; |
| 6941 | } |
| 6942 | |
| 6943 | /// parseSelect |
| 6944 | /// ::= 'select' TypeAndValue ',' TypeAndValue ',' TypeAndValue |
| 6945 | bool LLParser::parseSelect(Instruction *&Inst, PerFunctionState &PFS) { |
| 6946 | LocTy Loc; |
| 6947 | Value *Op0, *Op1, *Op2; |
| 6948 | if (parseTypeAndValue(Op0, Loc, PFS) || |
| 6949 | parseToken(lltok::comma, "expected ',' after select condition" ) || |
| 6950 | parseTypeAndValue(Op1, PFS) || |
| 6951 | parseToken(lltok::comma, "expected ',' after select value" ) || |
| 6952 | parseTypeAndValue(Op2, PFS)) |
| 6953 | return true; |
| 6954 | |
| 6955 | if (const char *Reason = SelectInst::areInvalidOperands(Op0, Op1, Op2)) |
| 6956 | return error(Loc, Reason); |
| 6957 | |
| 6958 | Inst = SelectInst::Create(Op0, Op1, Op2); |
| 6959 | return false; |
| 6960 | } |
| 6961 | |
| 6962 | /// parseVAArg |
| 6963 | /// ::= 'va_arg' TypeAndValue ',' Type |
| 6964 | bool LLParser::parseVAArg(Instruction *&Inst, PerFunctionState &PFS) { |
| 6965 | Value *Op; |
| 6966 | Type *EltTy = nullptr; |
| 6967 | LocTy TypeLoc; |
| 6968 | if (parseTypeAndValue(Op, PFS) || |
| 6969 | parseToken(lltok::comma, "expected ',' after vaarg operand" ) || |
| 6970 | parseType(EltTy, TypeLoc)) |
| 6971 | return true; |
| 6972 | |
| 6973 | if (!EltTy->isFirstClassType()) |
| 6974 | return error(TypeLoc, "va_arg requires operand with first class type" ); |
| 6975 | |
| 6976 | Inst = new VAArgInst(Op, EltTy); |
| 6977 | return false; |
| 6978 | } |
| 6979 | |
| 6980 | /// parseExtractElement |
| 6981 | /// ::= 'extractelement' TypeAndValue ',' TypeAndValue |
| 6982 | bool LLParser::(Instruction *&Inst, PerFunctionState &PFS) { |
| 6983 | LocTy Loc; |
| 6984 | Value *Op0, *Op1; |
| 6985 | if (parseTypeAndValue(Op0, Loc, PFS) || |
| 6986 | parseToken(lltok::comma, "expected ',' after extract value" ) || |
| 6987 | parseTypeAndValue(Op1, PFS)) |
| 6988 | return true; |
| 6989 | |
| 6990 | if (!ExtractElementInst::isValidOperands(Op0, Op1)) |
| 6991 | return error(Loc, "invalid extractelement operands" ); |
| 6992 | |
| 6993 | Inst = ExtractElementInst::Create(Op0, Op1); |
| 6994 | return false; |
| 6995 | } |
| 6996 | |
| 6997 | /// parseInsertElement |
| 6998 | /// ::= 'insertelement' TypeAndValue ',' TypeAndValue ',' TypeAndValue |
| 6999 | bool LLParser::parseInsertElement(Instruction *&Inst, PerFunctionState &PFS) { |
| 7000 | LocTy Loc; |
| 7001 | Value *Op0, *Op1, *Op2; |
| 7002 | if (parseTypeAndValue(Op0, Loc, PFS) || |
| 7003 | parseToken(lltok::comma, "expected ',' after insertelement value" ) || |
| 7004 | parseTypeAndValue(Op1, PFS) || |
| 7005 | parseToken(lltok::comma, "expected ',' after insertelement value" ) || |
| 7006 | parseTypeAndValue(Op2, PFS)) |
| 7007 | return true; |
| 7008 | |
| 7009 | if (!InsertElementInst::isValidOperands(Op0, Op1, Op2)) |
| 7010 | return error(Loc, "invalid insertelement operands" ); |
| 7011 | |
| 7012 | Inst = InsertElementInst::Create(Op0, Op1, Op2); |
| 7013 | return false; |
| 7014 | } |
| 7015 | |
| 7016 | /// parseShuffleVector |
| 7017 | /// ::= 'shufflevector' TypeAndValue ',' TypeAndValue ',' TypeAndValue |
| 7018 | bool LLParser::parseShuffleVector(Instruction *&Inst, PerFunctionState &PFS) { |
| 7019 | LocTy Loc; |
| 7020 | Value *Op0, *Op1, *Op2; |
| 7021 | if (parseTypeAndValue(Op0, Loc, PFS) || |
| 7022 | parseToken(lltok::comma, "expected ',' after shuffle mask" ) || |
| 7023 | parseTypeAndValue(Op1, PFS) || |
| 7024 | parseToken(lltok::comma, "expected ',' after shuffle value" ) || |
| 7025 | parseTypeAndValue(Op2, PFS)) |
| 7026 | return true; |
| 7027 | |
| 7028 | if (!ShuffleVectorInst::isValidOperands(Op0, Op1, Op2)) |
| 7029 | return error(Loc, "invalid shufflevector operands" ); |
| 7030 | |
| 7031 | Inst = new ShuffleVectorInst(Op0, Op1, Op2); |
| 7032 | return false; |
| 7033 | } |
| 7034 | |
| 7035 | /// parsePHI |
| 7036 | /// ::= 'phi' Type '[' Value ',' Value ']' (',' '[' Value ',' Value ']')* |
| 7037 | int LLParser::parsePHI(Instruction *&Inst, PerFunctionState &PFS) { |
| 7038 | Type *Ty = nullptr; LocTy TypeLoc; |
| 7039 | Value *Op0, *Op1; |
| 7040 | |
| 7041 | if (parseType(Ty, TypeLoc) || |
| 7042 | parseToken(lltok::lsquare, "expected '[' in phi value list" ) || |
| 7043 | parseValue(Ty, Op0, PFS) || |
| 7044 | parseToken(lltok::comma, "expected ',' after insertelement value" ) || |
| 7045 | parseValue(Type::getLabelTy(Context), Op1, PFS) || |
| 7046 | parseToken(lltok::rsquare, "expected ']' in phi value list" )) |
| 7047 | return true; |
| 7048 | |
| 7049 | bool = false; |
| 7050 | SmallVector<std::pair<Value*, BasicBlock*>, 16> PHIVals; |
| 7051 | |
| 7052 | while (true) { |
| 7053 | PHIVals.push_back(std::make_pair(Op0, cast<BasicBlock>(Op1))); |
| 7054 | |
| 7055 | if (!EatIfPresent(lltok::comma)) |
| 7056 | break; |
| 7057 | |
| 7058 | if (Lex.getKind() == lltok::MetadataVar) { |
| 7059 | AteExtraComma = true; |
| 7060 | break; |
| 7061 | } |
| 7062 | |
| 7063 | if (parseToken(lltok::lsquare, "expected '[' in phi value list" ) || |
| 7064 | parseValue(Ty, Op0, PFS) || |
| 7065 | parseToken(lltok::comma, "expected ',' after insertelement value" ) || |
| 7066 | parseValue(Type::getLabelTy(Context), Op1, PFS) || |
| 7067 | parseToken(lltok::rsquare, "expected ']' in phi value list" )) |
| 7068 | return true; |
| 7069 | } |
| 7070 | |
| 7071 | if (!Ty->isFirstClassType()) |
| 7072 | return error(TypeLoc, "phi node must have first class type" ); |
| 7073 | |
| 7074 | PHINode *PN = PHINode::Create(Ty, PHIVals.size()); |
| 7075 | for (unsigned i = 0, e = PHIVals.size(); i != e; ++i) |
| 7076 | PN->addIncoming(PHIVals[i].first, PHIVals[i].second); |
| 7077 | Inst = PN; |
| 7078 | return AteExtraComma ? InstExtraComma : InstNormal; |
| 7079 | } |
| 7080 | |
| 7081 | /// parseLandingPad |
| 7082 | /// ::= 'landingpad' Type 'personality' TypeAndValue 'cleanup'? Clause+ |
| 7083 | /// Clause |
| 7084 | /// ::= 'catch' TypeAndValue |
| 7085 | /// ::= 'filter' |
| 7086 | /// ::= 'filter' TypeAndValue ( ',' TypeAndValue )* |
| 7087 | bool LLParser::parseLandingPad(Instruction *&Inst, PerFunctionState &PFS) { |
| 7088 | Type *Ty = nullptr; LocTy TyLoc; |
| 7089 | |
| 7090 | if (parseType(Ty, TyLoc)) |
| 7091 | return true; |
| 7092 | |
| 7093 | std::unique_ptr<LandingPadInst> LP(LandingPadInst::Create(Ty, 0)); |
| 7094 | LP->setCleanup(EatIfPresent(lltok::kw_cleanup)); |
| 7095 | |
| 7096 | while (Lex.getKind() == lltok::kw_catch || Lex.getKind() == lltok::kw_filter){ |
| 7097 | LandingPadInst::ClauseType CT; |
| 7098 | if (EatIfPresent(lltok::kw_catch)) |
| 7099 | CT = LandingPadInst::Catch; |
| 7100 | else if (EatIfPresent(lltok::kw_filter)) |
| 7101 | CT = LandingPadInst::Filter; |
| 7102 | else |
| 7103 | return tokError("expected 'catch' or 'filter' clause type" ); |
| 7104 | |
| 7105 | Value *V; |
| 7106 | LocTy VLoc; |
| 7107 | if (parseTypeAndValue(V, VLoc, PFS)) |
| 7108 | return true; |
| 7109 | |
| 7110 | // A 'catch' type expects a non-array constant. A filter clause expects an |
| 7111 | // array constant. |
| 7112 | if (CT == LandingPadInst::Catch) { |
| 7113 | if (isa<ArrayType>(V->getType())) |
| 7114 | error(VLoc, "'catch' clause has an invalid type" ); |
| 7115 | } else { |
| 7116 | if (!isa<ArrayType>(V->getType())) |
| 7117 | error(VLoc, "'filter' clause has an invalid type" ); |
| 7118 | } |
| 7119 | |
| 7120 | Constant *CV = dyn_cast<Constant>(V); |
| 7121 | if (!CV) |
| 7122 | return error(VLoc, "clause argument must be a constant" ); |
| 7123 | LP->addClause(CV); |
| 7124 | } |
| 7125 | |
| 7126 | Inst = LP.release(); |
| 7127 | return false; |
| 7128 | } |
| 7129 | |
| 7130 | /// parseFreeze |
| 7131 | /// ::= 'freeze' Type Value |
| 7132 | bool LLParser::parseFreeze(Instruction *&Inst, PerFunctionState &PFS) { |
| 7133 | LocTy Loc; |
| 7134 | Value *Op; |
| 7135 | if (parseTypeAndValue(Op, Loc, PFS)) |
| 7136 | return true; |
| 7137 | |
| 7138 | Inst = new FreezeInst(Op); |
| 7139 | return false; |
| 7140 | } |
| 7141 | |
| 7142 | /// parseCall |
| 7143 | /// ::= 'call' OptionalFastMathFlags OptionalCallingConv |
| 7144 | /// OptionalAttrs Type Value ParameterList OptionalAttrs |
| 7145 | /// ::= 'tail' 'call' OptionalFastMathFlags OptionalCallingConv |
| 7146 | /// OptionalAttrs Type Value ParameterList OptionalAttrs |
| 7147 | /// ::= 'musttail' 'call' OptionalFastMathFlags OptionalCallingConv |
| 7148 | /// OptionalAttrs Type Value ParameterList OptionalAttrs |
| 7149 | /// ::= 'notail' 'call' OptionalFastMathFlags OptionalCallingConv |
| 7150 | /// OptionalAttrs Type Value ParameterList OptionalAttrs |
| 7151 | bool LLParser::parseCall(Instruction *&Inst, PerFunctionState &PFS, |
| 7152 | CallInst::TailCallKind TCK) { |
| 7153 | AttrBuilder RetAttrs, FnAttrs; |
| 7154 | std::vector<unsigned> FwdRefAttrGrps; |
| 7155 | LocTy BuiltinLoc; |
| 7156 | unsigned CallAddrSpace; |
| 7157 | unsigned CC; |
| 7158 | Type *RetType = nullptr; |
| 7159 | LocTy RetTypeLoc; |
| 7160 | ValID CalleeID; |
| 7161 | SmallVector<ParamInfo, 16> ArgList; |
| 7162 | SmallVector<OperandBundleDef, 2> BundleList; |
| 7163 | LocTy CallLoc = Lex.getLoc(); |
| 7164 | |
| 7165 | if (TCK != CallInst::TCK_None && |
| 7166 | parseToken(lltok::kw_call, |
| 7167 | "expected 'tail call', 'musttail call', or 'notail call'" )) |
| 7168 | return true; |
| 7169 | |
| 7170 | FastMathFlags FMF = EatFastMathFlagsIfPresent(); |
| 7171 | |
| 7172 | if (parseOptionalCallingConv(CC) || parseOptionalReturnAttrs(RetAttrs) || |
| 7173 | parseOptionalProgramAddrSpace(CallAddrSpace) || |
| 7174 | parseType(RetType, RetTypeLoc, true /*void allowed*/) || |
| 7175 | parseValID(CalleeID) || |
| 7176 | parseParameterList(ArgList, PFS, TCK == CallInst::TCK_MustTail, |
| 7177 | PFS.getFunction().isVarArg()) || |
| 7178 | parseFnAttributeValuePairs(FnAttrs, FwdRefAttrGrps, false, BuiltinLoc) || |
| 7179 | parseOptionalOperandBundles(BundleList, PFS)) |
| 7180 | return true; |
| 7181 | |
| 7182 | // If RetType is a non-function pointer type, then this is the short syntax |
| 7183 | // for the call, which means that RetType is just the return type. Infer the |
| 7184 | // rest of the function argument types from the arguments that are present. |
| 7185 | FunctionType *Ty = dyn_cast<FunctionType>(RetType); |
| 7186 | if (!Ty) { |
| 7187 | // Pull out the types of all of the arguments... |
| 7188 | std::vector<Type*> ParamTypes; |
| 7189 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i) |
| 7190 | ParamTypes.push_back(ArgList[i].V->getType()); |
| 7191 | |
| 7192 | if (!FunctionType::isValidReturnType(RetType)) |
| 7193 | return error(RetTypeLoc, "Invalid result type for LLVM function" ); |
| 7194 | |
| 7195 | Ty = FunctionType::get(RetType, ParamTypes, false); |
| 7196 | } |
| 7197 | |
| 7198 | CalleeID.FTy = Ty; |
| 7199 | |
| 7200 | // Look up the callee. |
| 7201 | Value *Callee; |
| 7202 | if (convertValIDToValue(PointerType::get(Ty, CallAddrSpace), CalleeID, Callee, |
| 7203 | &PFS, /*IsCall=*/true)) |
| 7204 | return true; |
| 7205 | |
| 7206 | // Set up the Attribute for the function. |
| 7207 | SmallVector<AttributeSet, 8> Attrs; |
| 7208 | |
| 7209 | SmallVector<Value*, 8> Args; |
| 7210 | |
| 7211 | // Loop through FunctionType's arguments and ensure they are specified |
| 7212 | // correctly. Also, gather any parameter attributes. |
| 7213 | FunctionType::param_iterator I = Ty->param_begin(); |
| 7214 | FunctionType::param_iterator E = Ty->param_end(); |
| 7215 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { |
| 7216 | Type *ExpectedTy = nullptr; |
| 7217 | if (I != E) { |
| 7218 | ExpectedTy = *I++; |
| 7219 | } else if (!Ty->isVarArg()) { |
| 7220 | return error(ArgList[i].Loc, "too many arguments specified" ); |
| 7221 | } |
| 7222 | |
| 7223 | if (ExpectedTy && ExpectedTy != ArgList[i].V->getType()) |
| 7224 | return error(ArgList[i].Loc, "argument is not of expected type '" + |
| 7225 | getTypeString(ExpectedTy) + "'" ); |
| 7226 | Args.push_back(ArgList[i].V); |
| 7227 | Attrs.push_back(ArgList[i].Attrs); |
| 7228 | } |
| 7229 | |
| 7230 | if (I != E) |
| 7231 | return error(CallLoc, "not enough parameters specified for call" ); |
| 7232 | |
| 7233 | if (FnAttrs.hasAlignmentAttr()) |
| 7234 | return error(CallLoc, "call instructions may not have an alignment" ); |
| 7235 | |
| 7236 | // Finish off the Attribute and check them |
| 7237 | AttributeList PAL = |
| 7238 | AttributeList::get(Context, AttributeSet::get(Context, FnAttrs), |
| 7239 | AttributeSet::get(Context, RetAttrs), Attrs); |
| 7240 | |
| 7241 | CallInst *CI = CallInst::Create(Ty, Callee, Args, BundleList); |
| 7242 | CI->setTailCallKind(TCK); |
| 7243 | CI->setCallingConv(CC); |
| 7244 | if (FMF.any()) { |
| 7245 | if (!isa<FPMathOperator>(CI)) { |
| 7246 | CI->deleteValue(); |
| 7247 | return error(CallLoc, "fast-math-flags specified for call without " |
| 7248 | "floating-point scalar or vector return type" ); |
| 7249 | } |
| 7250 | CI->setFastMathFlags(FMF); |
| 7251 | } |
| 7252 | CI->setAttributes(PAL); |
| 7253 | ForwardRefAttrGroups[CI] = FwdRefAttrGrps; |
| 7254 | Inst = CI; |
| 7255 | return false; |
| 7256 | } |
| 7257 | |
| 7258 | //===----------------------------------------------------------------------===// |
| 7259 | // Memory Instructions. |
| 7260 | //===----------------------------------------------------------------------===// |
| 7261 | |
| 7262 | /// parseAlloc |
| 7263 | /// ::= 'alloca' 'inalloca'? 'swifterror'? Type (',' TypeAndValue)? |
| 7264 | /// (',' 'align' i32)? (',', 'addrspace(n))? |
| 7265 | int LLParser::parseAlloc(Instruction *&Inst, PerFunctionState &PFS) { |
| 7266 | Value *Size = nullptr; |
| 7267 | LocTy SizeLoc, TyLoc, ASLoc; |
| 7268 | MaybeAlign Alignment; |
| 7269 | unsigned AddrSpace = 0; |
| 7270 | Type *Ty = nullptr; |
| 7271 | |
| 7272 | bool IsInAlloca = EatIfPresent(lltok::kw_inalloca); |
| 7273 | bool IsSwiftError = EatIfPresent(lltok::kw_swifterror); |
| 7274 | |
| 7275 | if (parseType(Ty, TyLoc)) |
| 7276 | return true; |
| 7277 | |
| 7278 | if (Ty->isFunctionTy() || !PointerType::isValidElementType(Ty)) |
| 7279 | return error(TyLoc, "invalid type for alloca" ); |
| 7280 | |
| 7281 | bool = false; |
| 7282 | if (EatIfPresent(lltok::comma)) { |
| 7283 | if (Lex.getKind() == lltok::kw_align) { |
| 7284 | if (parseOptionalAlignment(Alignment)) |
| 7285 | return true; |
| 7286 | if (parseOptionalCommaAddrSpace(AddrSpace, ASLoc, AteExtraComma)) |
| 7287 | return true; |
| 7288 | } else if (Lex.getKind() == lltok::kw_addrspace) { |
| 7289 | ASLoc = Lex.getLoc(); |
| 7290 | if (parseOptionalAddrSpace(AddrSpace)) |
| 7291 | return true; |
| 7292 | } else if (Lex.getKind() == lltok::MetadataVar) { |
| 7293 | AteExtraComma = true; |
| 7294 | } else { |
| 7295 | if (parseTypeAndValue(Size, SizeLoc, PFS)) |
| 7296 | return true; |
| 7297 | if (EatIfPresent(lltok::comma)) { |
| 7298 | if (Lex.getKind() == lltok::kw_align) { |
| 7299 | if (parseOptionalAlignment(Alignment)) |
| 7300 | return true; |
| 7301 | if (parseOptionalCommaAddrSpace(AddrSpace, ASLoc, AteExtraComma)) |
| 7302 | return true; |
| 7303 | } else if (Lex.getKind() == lltok::kw_addrspace) { |
| 7304 | ASLoc = Lex.getLoc(); |
| 7305 | if (parseOptionalAddrSpace(AddrSpace)) |
| 7306 | return true; |
| 7307 | } else if (Lex.getKind() == lltok::MetadataVar) { |
| 7308 | AteExtraComma = true; |
| 7309 | } |
| 7310 | } |
| 7311 | } |
| 7312 | } |
| 7313 | |
| 7314 | if (Size && !Size->getType()->isIntegerTy()) |
| 7315 | return error(SizeLoc, "element count must have integer type" ); |
| 7316 | |
| 7317 | SmallPtrSet<Type *, 4> Visited; |
| 7318 | if (!Alignment && !Ty->isSized(&Visited)) |
| 7319 | return error(TyLoc, "Cannot allocate unsized type" ); |
| 7320 | if (!Alignment) |
| 7321 | Alignment = M->getDataLayout().getPrefTypeAlign(Ty); |
| 7322 | AllocaInst *AI = new AllocaInst(Ty, AddrSpace, Size, *Alignment); |
| 7323 | AI->setUsedWithInAlloca(IsInAlloca); |
| 7324 | AI->setSwiftError(IsSwiftError); |
| 7325 | Inst = AI; |
| 7326 | return AteExtraComma ? InstExtraComma : InstNormal; |
| 7327 | } |
| 7328 | |
| 7329 | /// parseLoad |
| 7330 | /// ::= 'load' 'volatile'? TypeAndValue (',' 'align' i32)? |
| 7331 | /// ::= 'load' 'atomic' 'volatile'? TypeAndValue |
| 7332 | /// 'singlethread'? AtomicOrdering (',' 'align' i32)? |
| 7333 | int LLParser::parseLoad(Instruction *&Inst, PerFunctionState &PFS) { |
| 7334 | Value *Val; LocTy Loc; |
| 7335 | MaybeAlign Alignment; |
| 7336 | bool = false; |
| 7337 | bool isAtomic = false; |
| 7338 | AtomicOrdering Ordering = AtomicOrdering::NotAtomic; |
| 7339 | SyncScope::ID SSID = SyncScope::System; |
| 7340 | |
| 7341 | if (Lex.getKind() == lltok::kw_atomic) { |
| 7342 | isAtomic = true; |
| 7343 | Lex.Lex(); |
| 7344 | } |
| 7345 | |
| 7346 | bool isVolatile = false; |
| 7347 | if (Lex.getKind() == lltok::kw_volatile) { |
| 7348 | isVolatile = true; |
| 7349 | Lex.Lex(); |
| 7350 | } |
| 7351 | |
| 7352 | Type *Ty; |
| 7353 | LocTy ExplicitTypeLoc = Lex.getLoc(); |
| 7354 | if (parseType(Ty) || |
| 7355 | parseToken(lltok::comma, "expected comma after load's type" ) || |
| 7356 | parseTypeAndValue(Val, Loc, PFS) || |
| 7357 | parseScopeAndOrdering(isAtomic, SSID, Ordering) || |
| 7358 | parseOptionalCommaAlign(Alignment, AteExtraComma)) |
| 7359 | return true; |
| 7360 | |
| 7361 | if (!Val->getType()->isPointerTy() || !Ty->isFirstClassType()) |
| 7362 | return error(Loc, "load operand must be a pointer to a first class type" ); |
| 7363 | if (isAtomic && !Alignment) |
| 7364 | return error(Loc, "atomic load must have explicit non-zero alignment" ); |
| 7365 | if (Ordering == AtomicOrdering::Release || |
| 7366 | Ordering == AtomicOrdering::AcquireRelease) |
| 7367 | return error(Loc, "atomic load cannot use Release ordering" ); |
| 7368 | |
| 7369 | if (Ty != cast<PointerType>(Val->getType())->getElementType()) |
| 7370 | return error(ExplicitTypeLoc, |
| 7371 | "explicit pointee type doesn't match operand's pointee type" ); |
| 7372 | SmallPtrSet<Type *, 4> Visited; |
| 7373 | if (!Alignment && !Ty->isSized(&Visited)) |
| 7374 | return error(ExplicitTypeLoc, "loading unsized types is not allowed" ); |
| 7375 | if (!Alignment) |
| 7376 | Alignment = M->getDataLayout().getABITypeAlign(Ty); |
| 7377 | Inst = new LoadInst(Ty, Val, "" , isVolatile, *Alignment, Ordering, SSID); |
| 7378 | return AteExtraComma ? InstExtraComma : InstNormal; |
| 7379 | } |
| 7380 | |
| 7381 | /// parseStore |
| 7382 | |
| 7383 | /// ::= 'store' 'volatile'? TypeAndValue ',' TypeAndValue (',' 'align' i32)? |
| 7384 | /// ::= 'store' 'atomic' 'volatile'? TypeAndValue ',' TypeAndValue |
| 7385 | /// 'singlethread'? AtomicOrdering (',' 'align' i32)? |
| 7386 | int LLParser::parseStore(Instruction *&Inst, PerFunctionState &PFS) { |
| 7387 | Value *Val, *Ptr; LocTy Loc, PtrLoc; |
| 7388 | MaybeAlign Alignment; |
| 7389 | bool = false; |
| 7390 | bool isAtomic = false; |
| 7391 | AtomicOrdering Ordering = AtomicOrdering::NotAtomic; |
| 7392 | SyncScope::ID SSID = SyncScope::System; |
| 7393 | |
| 7394 | if (Lex.getKind() == lltok::kw_atomic) { |
| 7395 | isAtomic = true; |
| 7396 | Lex.Lex(); |
| 7397 | } |
| 7398 | |
| 7399 | bool isVolatile = false; |
| 7400 | if (Lex.getKind() == lltok::kw_volatile) { |
| 7401 | isVolatile = true; |
| 7402 | Lex.Lex(); |
| 7403 | } |
| 7404 | |
| 7405 | if (parseTypeAndValue(Val, Loc, PFS) || |
| 7406 | parseToken(lltok::comma, "expected ',' after store operand" ) || |
| 7407 | parseTypeAndValue(Ptr, PtrLoc, PFS) || |
| 7408 | parseScopeAndOrdering(isAtomic, SSID, Ordering) || |
| 7409 | parseOptionalCommaAlign(Alignment, AteExtraComma)) |
| 7410 | return true; |
| 7411 | |
| 7412 | if (!Ptr->getType()->isPointerTy()) |
| 7413 | return error(PtrLoc, "store operand must be a pointer" ); |
| 7414 | if (!Val->getType()->isFirstClassType()) |
| 7415 | return error(Loc, "store operand must be a first class value" ); |
| 7416 | if (cast<PointerType>(Ptr->getType())->getElementType() != Val->getType()) |
| 7417 | return error(Loc, "stored value and pointer type do not match" ); |
| 7418 | if (isAtomic && !Alignment) |
| 7419 | return error(Loc, "atomic store must have explicit non-zero alignment" ); |
| 7420 | if (Ordering == AtomicOrdering::Acquire || |
| 7421 | Ordering == AtomicOrdering::AcquireRelease) |
| 7422 | return error(Loc, "atomic store cannot use Acquire ordering" ); |
| 7423 | SmallPtrSet<Type *, 4> Visited; |
| 7424 | if (!Alignment && !Val->getType()->isSized(&Visited)) |
| 7425 | return error(Loc, "storing unsized types is not allowed" ); |
| 7426 | if (!Alignment) |
| 7427 | Alignment = M->getDataLayout().getABITypeAlign(Val->getType()); |
| 7428 | |
| 7429 | Inst = new StoreInst(Val, Ptr, isVolatile, *Alignment, Ordering, SSID); |
| 7430 | return AteExtraComma ? InstExtraComma : InstNormal; |
| 7431 | } |
| 7432 | |
| 7433 | /// parseCmpXchg |
| 7434 | /// ::= 'cmpxchg' 'weak'? 'volatile'? TypeAndValue ',' TypeAndValue ',' |
| 7435 | /// TypeAndValue 'singlethread'? AtomicOrdering AtomicOrdering |
| 7436 | int LLParser::parseCmpXchg(Instruction *&Inst, PerFunctionState &PFS) { |
| 7437 | Value *Ptr, *Cmp, *New; LocTy PtrLoc, CmpLoc, NewLoc; |
| 7438 | bool = false; |
| 7439 | AtomicOrdering SuccessOrdering = AtomicOrdering::NotAtomic; |
| 7440 | AtomicOrdering FailureOrdering = AtomicOrdering::NotAtomic; |
| 7441 | SyncScope::ID SSID = SyncScope::System; |
| 7442 | bool isVolatile = false; |
| 7443 | bool isWeak = false; |
| 7444 | |
| 7445 | if (EatIfPresent(lltok::kw_weak)) |
| 7446 | isWeak = true; |
| 7447 | |
| 7448 | if (EatIfPresent(lltok::kw_volatile)) |
| 7449 | isVolatile = true; |
| 7450 | |
| 7451 | if (parseTypeAndValue(Ptr, PtrLoc, PFS) || |
| 7452 | parseToken(lltok::comma, "expected ',' after cmpxchg address" ) || |
| 7453 | parseTypeAndValue(Cmp, CmpLoc, PFS) || |
| 7454 | parseToken(lltok::comma, "expected ',' after cmpxchg cmp operand" ) || |
| 7455 | parseTypeAndValue(New, NewLoc, PFS) || |
| 7456 | parseScopeAndOrdering(true /*Always atomic*/, SSID, SuccessOrdering) || |
| 7457 | parseOrdering(FailureOrdering)) |
| 7458 | return true; |
| 7459 | |
| 7460 | if (SuccessOrdering == AtomicOrdering::Unordered || |
| 7461 | FailureOrdering == AtomicOrdering::Unordered) |
| 7462 | return tokError("cmpxchg cannot be unordered" ); |
| 7463 | if (isStrongerThan(FailureOrdering, SuccessOrdering)) |
| 7464 | return tokError("cmpxchg failure argument shall be no stronger than the " |
| 7465 | "success argument" ); |
| 7466 | if (FailureOrdering == AtomicOrdering::Release || |
| 7467 | FailureOrdering == AtomicOrdering::AcquireRelease) |
| 7468 | return tokError( |
| 7469 | "cmpxchg failure ordering cannot include release semantics" ); |
| 7470 | if (!Ptr->getType()->isPointerTy()) |
| 7471 | return error(PtrLoc, "cmpxchg operand must be a pointer" ); |
| 7472 | if (cast<PointerType>(Ptr->getType())->getElementType() != Cmp->getType()) |
| 7473 | return error(CmpLoc, "compare value and pointer type do not match" ); |
| 7474 | if (cast<PointerType>(Ptr->getType())->getElementType() != New->getType()) |
| 7475 | return error(NewLoc, "new value and pointer type do not match" ); |
| 7476 | if (!New->getType()->isFirstClassType()) |
| 7477 | return error(NewLoc, "cmpxchg operand must be a first class value" ); |
| 7478 | |
| 7479 | Align Alignment( |
| 7480 | PFS.getFunction().getParent()->getDataLayout().getTypeStoreSize( |
| 7481 | Cmp->getType())); |
| 7482 | |
| 7483 | AtomicCmpXchgInst *CXI = new AtomicCmpXchgInst( |
| 7484 | Ptr, Cmp, New, Alignment, SuccessOrdering, FailureOrdering, SSID); |
| 7485 | CXI->setVolatile(isVolatile); |
| 7486 | CXI->setWeak(isWeak); |
| 7487 | Inst = CXI; |
| 7488 | return AteExtraComma ? InstExtraComma : InstNormal; |
| 7489 | } |
| 7490 | |
| 7491 | /// parseAtomicRMW |
| 7492 | /// ::= 'atomicrmw' 'volatile'? BinOp TypeAndValue ',' TypeAndValue |
| 7493 | /// 'singlethread'? AtomicOrdering |
| 7494 | int LLParser::parseAtomicRMW(Instruction *&Inst, PerFunctionState &PFS) { |
| 7495 | Value *Ptr, *Val; LocTy PtrLoc, ValLoc; |
| 7496 | bool = false; |
| 7497 | AtomicOrdering Ordering = AtomicOrdering::NotAtomic; |
| 7498 | SyncScope::ID SSID = SyncScope::System; |
| 7499 | bool isVolatile = false; |
| 7500 | bool IsFP = false; |
| 7501 | AtomicRMWInst::BinOp Operation; |
| 7502 | |
| 7503 | if (EatIfPresent(lltok::kw_volatile)) |
| 7504 | isVolatile = true; |
| 7505 | |
| 7506 | switch (Lex.getKind()) { |
| 7507 | default: |
| 7508 | return tokError("expected binary operation in atomicrmw" ); |
| 7509 | case lltok::kw_xchg: Operation = AtomicRMWInst::Xchg; break; |
| 7510 | case lltok::kw_add: Operation = AtomicRMWInst::Add; break; |
| 7511 | case lltok::kw_sub: Operation = AtomicRMWInst::Sub; break; |
| 7512 | case lltok::kw_and: Operation = AtomicRMWInst::And; break; |
| 7513 | case lltok::kw_nand: Operation = AtomicRMWInst::Nand; break; |
| 7514 | case lltok::kw_or: Operation = AtomicRMWInst::Or; break; |
| 7515 | case lltok::kw_xor: Operation = AtomicRMWInst::Xor; break; |
| 7516 | case lltok::kw_max: Operation = AtomicRMWInst::Max; break; |
| 7517 | case lltok::kw_min: Operation = AtomicRMWInst::Min; break; |
| 7518 | case lltok::kw_umax: Operation = AtomicRMWInst::UMax; break; |
| 7519 | case lltok::kw_umin: Operation = AtomicRMWInst::UMin; break; |
| 7520 | case lltok::kw_fadd: |
| 7521 | Operation = AtomicRMWInst::FAdd; |
| 7522 | IsFP = true; |
| 7523 | break; |
| 7524 | case lltok::kw_fsub: |
| 7525 | Operation = AtomicRMWInst::FSub; |
| 7526 | IsFP = true; |
| 7527 | break; |
| 7528 | } |
| 7529 | Lex.Lex(); // Eat the operation. |
| 7530 | |
| 7531 | if (parseTypeAndValue(Ptr, PtrLoc, PFS) || |
| 7532 | parseToken(lltok::comma, "expected ',' after atomicrmw address" ) || |
| 7533 | parseTypeAndValue(Val, ValLoc, PFS) || |
| 7534 | parseScopeAndOrdering(true /*Always atomic*/, SSID, Ordering)) |
| 7535 | return true; |
| 7536 | |
| 7537 | if (Ordering == AtomicOrdering::Unordered) |
| 7538 | return tokError("atomicrmw cannot be unordered" ); |
| 7539 | if (!Ptr->getType()->isPointerTy()) |
| 7540 | return error(PtrLoc, "atomicrmw operand must be a pointer" ); |
| 7541 | if (cast<PointerType>(Ptr->getType())->getElementType() != Val->getType()) |
| 7542 | return error(ValLoc, "atomicrmw value and pointer type do not match" ); |
| 7543 | |
| 7544 | if (Operation == AtomicRMWInst::Xchg) { |
| 7545 | if (!Val->getType()->isIntegerTy() && |
| 7546 | !Val->getType()->isFloatingPointTy()) { |
| 7547 | return error(ValLoc, |
| 7548 | "atomicrmw " + AtomicRMWInst::getOperationName(Operation) + |
| 7549 | " operand must be an integer or floating point type" ); |
| 7550 | } |
| 7551 | } else if (IsFP) { |
| 7552 | if (!Val->getType()->isFloatingPointTy()) { |
| 7553 | return error(ValLoc, "atomicrmw " + |
| 7554 | AtomicRMWInst::getOperationName(Operation) + |
| 7555 | " operand must be a floating point type" ); |
| 7556 | } |
| 7557 | } else { |
| 7558 | if (!Val->getType()->isIntegerTy()) { |
| 7559 | return error(ValLoc, "atomicrmw " + |
| 7560 | AtomicRMWInst::getOperationName(Operation) + |
| 7561 | " operand must be an integer" ); |
| 7562 | } |
| 7563 | } |
| 7564 | |
| 7565 | unsigned Size = Val->getType()->getPrimitiveSizeInBits(); |
| 7566 | if (Size < 8 || (Size & (Size - 1))) |
| 7567 | return error(ValLoc, "atomicrmw operand must be power-of-two byte-sized" |
| 7568 | " integer" ); |
| 7569 | Align Alignment( |
| 7570 | PFS.getFunction().getParent()->getDataLayout().getTypeStoreSize( |
| 7571 | Val->getType())); |
| 7572 | AtomicRMWInst *RMWI = |
| 7573 | new AtomicRMWInst(Operation, Ptr, Val, Alignment, Ordering, SSID); |
| 7574 | RMWI->setVolatile(isVolatile); |
| 7575 | Inst = RMWI; |
| 7576 | return AteExtraComma ? InstExtraComma : InstNormal; |
| 7577 | } |
| 7578 | |
| 7579 | /// parseFence |
| 7580 | /// ::= 'fence' 'singlethread'? AtomicOrdering |
| 7581 | int LLParser::parseFence(Instruction *&Inst, PerFunctionState &PFS) { |
| 7582 | AtomicOrdering Ordering = AtomicOrdering::NotAtomic; |
| 7583 | SyncScope::ID SSID = SyncScope::System; |
| 7584 | if (parseScopeAndOrdering(true /*Always atomic*/, SSID, Ordering)) |
| 7585 | return true; |
| 7586 | |
| 7587 | if (Ordering == AtomicOrdering::Unordered) |
| 7588 | return tokError("fence cannot be unordered" ); |
| 7589 | if (Ordering == AtomicOrdering::Monotonic) |
| 7590 | return tokError("fence cannot be monotonic" ); |
| 7591 | |
| 7592 | Inst = new FenceInst(Context, Ordering, SSID); |
| 7593 | return InstNormal; |
| 7594 | } |
| 7595 | |
| 7596 | /// parseGetElementPtr |
| 7597 | /// ::= 'getelementptr' 'inbounds'? TypeAndValue (',' TypeAndValue)* |
| 7598 | int LLParser::parseGetElementPtr(Instruction *&Inst, PerFunctionState &PFS) { |
| 7599 | Value *Ptr = nullptr; |
| 7600 | Value *Val = nullptr; |
| 7601 | LocTy Loc, EltLoc; |
| 7602 | |
| 7603 | bool InBounds = EatIfPresent(lltok::kw_inbounds); |
| 7604 | |
| 7605 | Type *Ty = nullptr; |
| 7606 | LocTy ExplicitTypeLoc = Lex.getLoc(); |
| 7607 | if (parseType(Ty) || |
| 7608 | parseToken(lltok::comma, "expected comma after getelementptr's type" ) || |
| 7609 | parseTypeAndValue(Ptr, Loc, PFS)) |
| 7610 | return true; |
| 7611 | |
| 7612 | Type *BaseType = Ptr->getType(); |
| 7613 | PointerType *BasePointerType = dyn_cast<PointerType>(BaseType->getScalarType()); |
| 7614 | if (!BasePointerType) |
| 7615 | return error(Loc, "base of getelementptr must be a pointer" ); |
| 7616 | |
| 7617 | if (Ty != BasePointerType->getElementType()) |
| 7618 | return error(ExplicitTypeLoc, |
| 7619 | "explicit pointee type doesn't match operand's pointee type" ); |
| 7620 | |
| 7621 | SmallVector<Value*, 16> Indices; |
| 7622 | bool = false; |
| 7623 | // GEP returns a vector of pointers if at least one of parameters is a vector. |
| 7624 | // All vector parameters should have the same vector width. |
| 7625 | ElementCount GEPWidth = BaseType->isVectorTy() |
| 7626 | ? cast<VectorType>(BaseType)->getElementCount() |
| 7627 | : ElementCount::getFixed(0); |
| 7628 | |
| 7629 | while (EatIfPresent(lltok::comma)) { |
| 7630 | if (Lex.getKind() == lltok::MetadataVar) { |
| 7631 | AteExtraComma = true; |
| 7632 | break; |
| 7633 | } |
| 7634 | if (parseTypeAndValue(Val, EltLoc, PFS)) |
| 7635 | return true; |
| 7636 | if (!Val->getType()->isIntOrIntVectorTy()) |
| 7637 | return error(EltLoc, "getelementptr index must be an integer" ); |
| 7638 | |
| 7639 | if (auto *ValVTy = dyn_cast<VectorType>(Val->getType())) { |
| 7640 | ElementCount ValNumEl = ValVTy->getElementCount(); |
| 7641 | if (GEPWidth != ElementCount::getFixed(0) && GEPWidth != ValNumEl) |
| 7642 | return error( |
| 7643 | EltLoc, |
| 7644 | "getelementptr vector index has a wrong number of elements" ); |
| 7645 | GEPWidth = ValNumEl; |
| 7646 | } |
| 7647 | Indices.push_back(Val); |
| 7648 | } |
| 7649 | |
| 7650 | SmallPtrSet<Type*, 4> Visited; |
| 7651 | if (!Indices.empty() && !Ty->isSized(&Visited)) |
| 7652 | return error(Loc, "base element of getelementptr must be sized" ); |
| 7653 | |
| 7654 | if (!GetElementPtrInst::getIndexedType(Ty, Indices)) |
| 7655 | return error(Loc, "invalid getelementptr indices" ); |
| 7656 | Inst = GetElementPtrInst::Create(Ty, Ptr, Indices); |
| 7657 | if (InBounds) |
| 7658 | cast<GetElementPtrInst>(Inst)->setIsInBounds(true); |
| 7659 | return AteExtraComma ? InstExtraComma : InstNormal; |
| 7660 | } |
| 7661 | |
| 7662 | /// parseExtractValue |
| 7663 | /// ::= 'extractvalue' TypeAndValue (',' uint32)+ |
| 7664 | int LLParser::(Instruction *&Inst, PerFunctionState &PFS) { |
| 7665 | Value *Val; LocTy Loc; |
| 7666 | SmallVector<unsigned, 4> Indices; |
| 7667 | bool ; |
| 7668 | if (parseTypeAndValue(Val, Loc, PFS) || |
| 7669 | parseIndexList(Indices, AteExtraComma)) |
| 7670 | return true; |
| 7671 | |
| 7672 | if (!Val->getType()->isAggregateType()) |
| 7673 | return error(Loc, "extractvalue operand must be aggregate type" ); |
| 7674 | |
| 7675 | if (!ExtractValueInst::getIndexedType(Val->getType(), Indices)) |
| 7676 | return error(Loc, "invalid indices for extractvalue" ); |
| 7677 | Inst = ExtractValueInst::Create(Val, Indices); |
| 7678 | return AteExtraComma ? InstExtraComma : InstNormal; |
| 7679 | } |
| 7680 | |
| 7681 | /// parseInsertValue |
| 7682 | /// ::= 'insertvalue' TypeAndValue ',' TypeAndValue (',' uint32)+ |
| 7683 | int LLParser::parseInsertValue(Instruction *&Inst, PerFunctionState &PFS) { |
| 7684 | Value *Val0, *Val1; LocTy Loc0, Loc1; |
| 7685 | SmallVector<unsigned, 4> Indices; |
| 7686 | bool ; |
| 7687 | if (parseTypeAndValue(Val0, Loc0, PFS) || |
| 7688 | parseToken(lltok::comma, "expected comma after insertvalue operand" ) || |
| 7689 | parseTypeAndValue(Val1, Loc1, PFS) || |
| 7690 | parseIndexList(Indices, AteExtraComma)) |
| 7691 | return true; |
| 7692 | |
| 7693 | if (!Val0->getType()->isAggregateType()) |
| 7694 | return error(Loc0, "insertvalue operand must be aggregate type" ); |
| 7695 | |
| 7696 | Type *IndexedType = ExtractValueInst::getIndexedType(Val0->getType(), Indices); |
| 7697 | if (!IndexedType) |
| 7698 | return error(Loc0, "invalid indices for insertvalue" ); |
| 7699 | if (IndexedType != Val1->getType()) |
| 7700 | return error(Loc1, "insertvalue operand and field disagree in type: '" + |
| 7701 | getTypeString(Val1->getType()) + "' instead of '" + |
| 7702 | getTypeString(IndexedType) + "'" ); |
| 7703 | Inst = InsertValueInst::Create(Val0, Val1, Indices); |
| 7704 | return AteExtraComma ? InstExtraComma : InstNormal; |
| 7705 | } |
| 7706 | |
| 7707 | //===----------------------------------------------------------------------===// |
| 7708 | // Embedded metadata. |
| 7709 | //===----------------------------------------------------------------------===// |
| 7710 | |
| 7711 | /// parseMDNodeVector |
| 7712 | /// ::= { Element (',' Element)* } |
| 7713 | /// Element |
| 7714 | /// ::= 'null' | TypeAndValue |
| 7715 | bool LLParser::parseMDNodeVector(SmallVectorImpl<Metadata *> &Elts) { |
| 7716 | if (parseToken(lltok::lbrace, "expected '{' here" )) |
| 7717 | return true; |
| 7718 | |
| 7719 | // Check for an empty list. |
| 7720 | if (EatIfPresent(lltok::rbrace)) |
| 7721 | return false; |
| 7722 | |
| 7723 | do { |
| 7724 | // Null is a special case since it is typeless. |
| 7725 | if (EatIfPresent(lltok::kw_null)) { |
| 7726 | Elts.push_back(nullptr); |
| 7727 | continue; |
| 7728 | } |
| 7729 | |
| 7730 | Metadata *MD; |
| 7731 | if (parseMetadata(MD, nullptr)) |
| 7732 | return true; |
| 7733 | Elts.push_back(MD); |
| 7734 | } while (EatIfPresent(lltok::comma)); |
| 7735 | |
| 7736 | return parseToken(lltok::rbrace, "expected end of metadata node" ); |
| 7737 | } |
| 7738 | |
| 7739 | //===----------------------------------------------------------------------===// |
| 7740 | // Use-list order directives. |
| 7741 | //===----------------------------------------------------------------------===// |
| 7742 | bool LLParser::sortUseListOrder(Value *V, ArrayRef<unsigned> Indexes, |
| 7743 | SMLoc Loc) { |
| 7744 | if (V->use_empty()) |
| 7745 | return error(Loc, "value has no uses" ); |
| 7746 | |
| 7747 | unsigned NumUses = 0; |
| 7748 | SmallDenseMap<const Use *, unsigned, 16> Order; |
| 7749 | for (const Use &U : V->uses()) { |
| 7750 | if (++NumUses > Indexes.size()) |
| 7751 | break; |
| 7752 | Order[&U] = Indexes[NumUses - 1]; |
| 7753 | } |
| 7754 | if (NumUses < 2) |
| 7755 | return error(Loc, "value only has one use" ); |
| 7756 | if (Order.size() != Indexes.size() || NumUses > Indexes.size()) |
| 7757 | return error(Loc, |
| 7758 | "wrong number of indexes, expected " + Twine(V->getNumUses())); |
| 7759 | |
| 7760 | V->sortUseList([&](const Use &L, const Use &R) { |
| 7761 | return Order.lookup(&L) < Order.lookup(&R); |
| 7762 | }); |
| 7763 | return false; |
| 7764 | } |
| 7765 | |
| 7766 | /// parseUseListOrderIndexes |
| 7767 | /// ::= '{' uint32 (',' uint32)+ '}' |
| 7768 | bool LLParser::parseUseListOrderIndexes(SmallVectorImpl<unsigned> &Indexes) { |
| 7769 | SMLoc Loc = Lex.getLoc(); |
| 7770 | if (parseToken(lltok::lbrace, "expected '{' here" )) |
| 7771 | return true; |
| 7772 | if (Lex.getKind() == lltok::rbrace) |
| 7773 | return Lex.Error("expected non-empty list of uselistorder indexes" ); |
| 7774 | |
| 7775 | // Use Offset, Max, and IsOrdered to check consistency of indexes. The |
| 7776 | // indexes should be distinct numbers in the range [0, size-1], and should |
| 7777 | // not be in order. |
| 7778 | unsigned Offset = 0; |
| 7779 | unsigned Max = 0; |
| 7780 | bool IsOrdered = true; |
| 7781 | assert(Indexes.empty() && "Expected empty order vector" ); |
| 7782 | do { |
| 7783 | unsigned Index; |
| 7784 | if (parseUInt32(Index)) |
| 7785 | return true; |
| 7786 | |
| 7787 | // Update consistency checks. |
| 7788 | Offset += Index - Indexes.size(); |
| 7789 | Max = std::max(Max, Index); |
| 7790 | IsOrdered &= Index == Indexes.size(); |
| 7791 | |
| 7792 | Indexes.push_back(Index); |
| 7793 | } while (EatIfPresent(lltok::comma)); |
| 7794 | |
| 7795 | if (parseToken(lltok::rbrace, "expected '}' here" )) |
| 7796 | return true; |
| 7797 | |
| 7798 | if (Indexes.size() < 2) |
| 7799 | return error(Loc, "expected >= 2 uselistorder indexes" ); |
| 7800 | if (Offset != 0 || Max >= Indexes.size()) |
| 7801 | return error(Loc, |
| 7802 | "expected distinct uselistorder indexes in range [0, size)" ); |
| 7803 | if (IsOrdered) |
| 7804 | return error(Loc, "expected uselistorder indexes to change the order" ); |
| 7805 | |
| 7806 | return false; |
| 7807 | } |
| 7808 | |
| 7809 | /// parseUseListOrder |
| 7810 | /// ::= 'uselistorder' Type Value ',' UseListOrderIndexes |
| 7811 | bool LLParser::parseUseListOrder(PerFunctionState *PFS) { |
| 7812 | SMLoc Loc = Lex.getLoc(); |
| 7813 | if (parseToken(lltok::kw_uselistorder, "expected uselistorder directive" )) |
| 7814 | return true; |
| 7815 | |
| 7816 | Value *V; |
| 7817 | SmallVector<unsigned, 16> Indexes; |
| 7818 | if (parseTypeAndValue(V, PFS) || |
| 7819 | parseToken(lltok::comma, "expected comma in uselistorder directive" ) || |
| 7820 | parseUseListOrderIndexes(Indexes)) |
| 7821 | return true; |
| 7822 | |
| 7823 | return sortUseListOrder(V, Indexes, Loc); |
| 7824 | } |
| 7825 | |
| 7826 | /// parseUseListOrderBB |
| 7827 | /// ::= 'uselistorder_bb' @foo ',' %bar ',' UseListOrderIndexes |
| 7828 | bool LLParser::parseUseListOrderBB() { |
| 7829 | assert(Lex.getKind() == lltok::kw_uselistorder_bb); |
| 7830 | SMLoc Loc = Lex.getLoc(); |
| 7831 | Lex.Lex(); |
| 7832 | |
| 7833 | ValID Fn, Label; |
| 7834 | SmallVector<unsigned, 16> Indexes; |
| 7835 | if (parseValID(Fn) || |
| 7836 | parseToken(lltok::comma, "expected comma in uselistorder_bb directive" ) || |
| 7837 | parseValID(Label) || |
| 7838 | parseToken(lltok::comma, "expected comma in uselistorder_bb directive" ) || |
| 7839 | parseUseListOrderIndexes(Indexes)) |
| 7840 | return true; |
| 7841 | |
| 7842 | // Check the function. |
| 7843 | GlobalValue *GV; |
| 7844 | if (Fn.Kind == ValID::t_GlobalName) |
| 7845 | GV = M->getNamedValue(Fn.StrVal); |
| 7846 | else if (Fn.Kind == ValID::t_GlobalID) |
| 7847 | GV = Fn.UIntVal < NumberedVals.size() ? NumberedVals[Fn.UIntVal] : nullptr; |
| 7848 | else |
| 7849 | return error(Fn.Loc, "expected function name in uselistorder_bb" ); |
| 7850 | if (!GV) |
| 7851 | return error(Fn.Loc, |
| 7852 | "invalid function forward reference in uselistorder_bb" ); |
| 7853 | auto *F = dyn_cast<Function>(GV); |
| 7854 | if (!F) |
| 7855 | return error(Fn.Loc, "expected function name in uselistorder_bb" ); |
| 7856 | if (F->isDeclaration()) |
| 7857 | return error(Fn.Loc, "invalid declaration in uselistorder_bb" ); |
| 7858 | |
| 7859 | // Check the basic block. |
| 7860 | if (Label.Kind == ValID::t_LocalID) |
| 7861 | return error(Label.Loc, "invalid numeric label in uselistorder_bb" ); |
| 7862 | if (Label.Kind != ValID::t_LocalName) |
| 7863 | return error(Label.Loc, "expected basic block name in uselistorder_bb" ); |
| 7864 | Value *V = F->getValueSymbolTable()->lookup(Label.StrVal); |
| 7865 | if (!V) |
| 7866 | return error(Label.Loc, "invalid basic block in uselistorder_bb" ); |
| 7867 | if (!isa<BasicBlock>(V)) |
| 7868 | return error(Label.Loc, "expected basic block in uselistorder_bb" ); |
| 7869 | |
| 7870 | return sortUseListOrder(V, Indexes, Loc); |
| 7871 | } |
| 7872 | |
| 7873 | /// ModuleEntry |
| 7874 | /// ::= 'module' ':' '(' 'path' ':' STRINGCONSTANT ',' 'hash' ':' Hash ')' |
| 7875 | /// Hash ::= '(' UInt32 ',' UInt32 ',' UInt32 ',' UInt32 ',' UInt32 ')' |
| 7876 | bool LLParser::parseModuleEntry(unsigned ID) { |
| 7877 | assert(Lex.getKind() == lltok::kw_module); |
| 7878 | Lex.Lex(); |
| 7879 | |
| 7880 | std::string Path; |
| 7881 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 7882 | parseToken(lltok::lparen, "expected '(' here" ) || |
| 7883 | parseToken(lltok::kw_path, "expected 'path' here" ) || |
| 7884 | parseToken(lltok::colon, "expected ':' here" ) || |
| 7885 | parseStringConstant(Path) || |
| 7886 | parseToken(lltok::comma, "expected ',' here" ) || |
| 7887 | parseToken(lltok::kw_hash, "expected 'hash' here" ) || |
| 7888 | parseToken(lltok::colon, "expected ':' here" ) || |
| 7889 | parseToken(lltok::lparen, "expected '(' here" )) |
| 7890 | return true; |
| 7891 | |
| 7892 | ModuleHash Hash; |
| 7893 | if (parseUInt32(Hash[0]) || parseToken(lltok::comma, "expected ',' here" ) || |
| 7894 | parseUInt32(Hash[1]) || parseToken(lltok::comma, "expected ',' here" ) || |
| 7895 | parseUInt32(Hash[2]) || parseToken(lltok::comma, "expected ',' here" ) || |
| 7896 | parseUInt32(Hash[3]) || parseToken(lltok::comma, "expected ',' here" ) || |
| 7897 | parseUInt32(Hash[4])) |
| 7898 | return true; |
| 7899 | |
| 7900 | if (parseToken(lltok::rparen, "expected ')' here" ) || |
| 7901 | parseToken(lltok::rparen, "expected ')' here" )) |
| 7902 | return true; |
| 7903 | |
| 7904 | auto ModuleEntry = Index->addModule(Path, ID, Hash); |
| 7905 | ModuleIdMap[ID] = ModuleEntry->first(); |
| 7906 | |
| 7907 | return false; |
| 7908 | } |
| 7909 | |
| 7910 | /// TypeIdEntry |
| 7911 | /// ::= 'typeid' ':' '(' 'name' ':' STRINGCONSTANT ',' TypeIdSummary ')' |
| 7912 | bool LLParser::parseTypeIdEntry(unsigned ID) { |
| 7913 | assert(Lex.getKind() == lltok::kw_typeid); |
| 7914 | Lex.Lex(); |
| 7915 | |
| 7916 | std::string Name; |
| 7917 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 7918 | parseToken(lltok::lparen, "expected '(' here" ) || |
| 7919 | parseToken(lltok::kw_name, "expected 'name' here" ) || |
| 7920 | parseToken(lltok::colon, "expected ':' here" ) || |
| 7921 | parseStringConstant(Name)) |
| 7922 | return true; |
| 7923 | |
| 7924 | TypeIdSummary &TIS = Index->getOrInsertTypeIdSummary(Name); |
| 7925 | if (parseToken(lltok::comma, "expected ',' here" ) || |
| 7926 | parseTypeIdSummary(TIS) || parseToken(lltok::rparen, "expected ')' here" )) |
| 7927 | return true; |
| 7928 | |
| 7929 | // Check if this ID was forward referenced, and if so, update the |
| 7930 | // corresponding GUIDs. |
| 7931 | auto FwdRefTIDs = ForwardRefTypeIds.find(ID); |
| 7932 | if (FwdRefTIDs != ForwardRefTypeIds.end()) { |
| 7933 | for (auto TIDRef : FwdRefTIDs->second) { |
| 7934 | assert(!*TIDRef.first && |
| 7935 | "Forward referenced type id GUID expected to be 0" ); |
| 7936 | *TIDRef.first = GlobalValue::getGUID(Name); |
| 7937 | } |
| 7938 | ForwardRefTypeIds.erase(FwdRefTIDs); |
| 7939 | } |
| 7940 | |
| 7941 | return false; |
| 7942 | } |
| 7943 | |
| 7944 | /// TypeIdSummary |
| 7945 | /// ::= 'summary' ':' '(' TypeTestResolution [',' OptionalWpdResolutions]? ')' |
| 7946 | bool LLParser::parseTypeIdSummary(TypeIdSummary &TIS) { |
| 7947 | if (parseToken(lltok::kw_summary, "expected 'summary' here" ) || |
| 7948 | parseToken(lltok::colon, "expected ':' here" ) || |
| 7949 | parseToken(lltok::lparen, "expected '(' here" ) || |
| 7950 | parseTypeTestResolution(TIS.TTRes)) |
| 7951 | return true; |
| 7952 | |
| 7953 | if (EatIfPresent(lltok::comma)) { |
| 7954 | // Expect optional wpdResolutions field |
| 7955 | if (parseOptionalWpdResolutions(TIS.WPDRes)) |
| 7956 | return true; |
| 7957 | } |
| 7958 | |
| 7959 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 7960 | return true; |
| 7961 | |
| 7962 | return false; |
| 7963 | } |
| 7964 | |
| 7965 | static ValueInfo EmptyVI = |
| 7966 | ValueInfo(false, (GlobalValueSummaryMapTy::value_type *)-8); |
| 7967 | |
| 7968 | /// TypeIdCompatibleVtableEntry |
| 7969 | /// ::= 'typeidCompatibleVTable' ':' '(' 'name' ':' STRINGCONSTANT ',' |
| 7970 | /// TypeIdCompatibleVtableInfo |
| 7971 | /// ')' |
| 7972 | bool LLParser::parseTypeIdCompatibleVtableEntry(unsigned ID) { |
| 7973 | assert(Lex.getKind() == lltok::kw_typeidCompatibleVTable); |
| 7974 | Lex.Lex(); |
| 7975 | |
| 7976 | std::string Name; |
| 7977 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 7978 | parseToken(lltok::lparen, "expected '(' here" ) || |
| 7979 | parseToken(lltok::kw_name, "expected 'name' here" ) || |
| 7980 | parseToken(lltok::colon, "expected ':' here" ) || |
| 7981 | parseStringConstant(Name)) |
| 7982 | return true; |
| 7983 | |
| 7984 | TypeIdCompatibleVtableInfo &TI = |
| 7985 | Index->getOrInsertTypeIdCompatibleVtableSummary(Name); |
| 7986 | if (parseToken(lltok::comma, "expected ',' here" ) || |
| 7987 | parseToken(lltok::kw_summary, "expected 'summary' here" ) || |
| 7988 | parseToken(lltok::colon, "expected ':' here" ) || |
| 7989 | parseToken(lltok::lparen, "expected '(' here" )) |
| 7990 | return true; |
| 7991 | |
| 7992 | IdToIndexMapType IdToIndexMap; |
| 7993 | // parse each call edge |
| 7994 | do { |
| 7995 | uint64_t Offset; |
| 7996 | if (parseToken(lltok::lparen, "expected '(' here" ) || |
| 7997 | parseToken(lltok::kw_offset, "expected 'offset' here" ) || |
| 7998 | parseToken(lltok::colon, "expected ':' here" ) || parseUInt64(Offset) || |
| 7999 | parseToken(lltok::comma, "expected ',' here" )) |
| 8000 | return true; |
| 8001 | |
| 8002 | LocTy Loc = Lex.getLoc(); |
| 8003 | unsigned GVId; |
| 8004 | ValueInfo VI; |
| 8005 | if (parseGVReference(VI, GVId)) |
| 8006 | return true; |
| 8007 | |
| 8008 | // Keep track of the TypeIdCompatibleVtableInfo array index needing a |
| 8009 | // forward reference. We will save the location of the ValueInfo needing an |
| 8010 | // update, but can only do so once the std::vector is finalized. |
| 8011 | if (VI == EmptyVI) |
| 8012 | IdToIndexMap[GVId].push_back(std::make_pair(TI.size(), Loc)); |
| 8013 | TI.push_back({Offset, VI}); |
| 8014 | |
| 8015 | if (parseToken(lltok::rparen, "expected ')' in call" )) |
| 8016 | return true; |
| 8017 | } while (EatIfPresent(lltok::comma)); |
| 8018 | |
| 8019 | // Now that the TI vector is finalized, it is safe to save the locations |
| 8020 | // of any forward GV references that need updating later. |
| 8021 | for (auto I : IdToIndexMap) { |
| 8022 | auto &Infos = ForwardRefValueInfos[I.first]; |
| 8023 | for (auto P : I.second) { |
| 8024 | assert(TI[P.first].VTableVI == EmptyVI && |
| 8025 | "Forward referenced ValueInfo expected to be empty" ); |
| 8026 | Infos.emplace_back(&TI[P.first].VTableVI, P.second); |
| 8027 | } |
| 8028 | } |
| 8029 | |
| 8030 | if (parseToken(lltok::rparen, "expected ')' here" ) || |
| 8031 | parseToken(lltok::rparen, "expected ')' here" )) |
| 8032 | return true; |
| 8033 | |
| 8034 | // Check if this ID was forward referenced, and if so, update the |
| 8035 | // corresponding GUIDs. |
| 8036 | auto FwdRefTIDs = ForwardRefTypeIds.find(ID); |
| 8037 | if (FwdRefTIDs != ForwardRefTypeIds.end()) { |
| 8038 | for (auto TIDRef : FwdRefTIDs->second) { |
| 8039 | assert(!*TIDRef.first && |
| 8040 | "Forward referenced type id GUID expected to be 0" ); |
| 8041 | *TIDRef.first = GlobalValue::getGUID(Name); |
| 8042 | } |
| 8043 | ForwardRefTypeIds.erase(FwdRefTIDs); |
| 8044 | } |
| 8045 | |
| 8046 | return false; |
| 8047 | } |
| 8048 | |
| 8049 | /// TypeTestResolution |
| 8050 | /// ::= 'typeTestRes' ':' '(' 'kind' ':' |
| 8051 | /// ( 'unsat' | 'byteArray' | 'inline' | 'single' | 'allOnes' ) ',' |
| 8052 | /// 'sizeM1BitWidth' ':' SizeM1BitWidth [',' 'alignLog2' ':' UInt64]? |
| 8053 | /// [',' 'sizeM1' ':' UInt64]? [',' 'bitMask' ':' UInt8]? |
| 8054 | /// [',' 'inlinesBits' ':' UInt64]? ')' |
| 8055 | bool LLParser::parseTypeTestResolution(TypeTestResolution &TTRes) { |
| 8056 | if (parseToken(lltok::kw_typeTestRes, "expected 'typeTestRes' here" ) || |
| 8057 | parseToken(lltok::colon, "expected ':' here" ) || |
| 8058 | parseToken(lltok::lparen, "expected '(' here" ) || |
| 8059 | parseToken(lltok::kw_kind, "expected 'kind' here" ) || |
| 8060 | parseToken(lltok::colon, "expected ':' here" )) |
| 8061 | return true; |
| 8062 | |
| 8063 | switch (Lex.getKind()) { |
| 8064 | case lltok::kw_unknown: |
| 8065 | TTRes.TheKind = TypeTestResolution::Unknown; |
| 8066 | break; |
| 8067 | case lltok::kw_unsat: |
| 8068 | TTRes.TheKind = TypeTestResolution::Unsat; |
| 8069 | break; |
| 8070 | case lltok::kw_byteArray: |
| 8071 | TTRes.TheKind = TypeTestResolution::ByteArray; |
| 8072 | break; |
| 8073 | case lltok::kw_inline: |
| 8074 | TTRes.TheKind = TypeTestResolution::Inline; |
| 8075 | break; |
| 8076 | case lltok::kw_single: |
| 8077 | TTRes.TheKind = TypeTestResolution::Single; |
| 8078 | break; |
| 8079 | case lltok::kw_allOnes: |
| 8080 | TTRes.TheKind = TypeTestResolution::AllOnes; |
| 8081 | break; |
| 8082 | default: |
| 8083 | return error(Lex.getLoc(), "unexpected TypeTestResolution kind" ); |
| 8084 | } |
| 8085 | Lex.Lex(); |
| 8086 | |
| 8087 | if (parseToken(lltok::comma, "expected ',' here" ) || |
| 8088 | parseToken(lltok::kw_sizeM1BitWidth, "expected 'sizeM1BitWidth' here" ) || |
| 8089 | parseToken(lltok::colon, "expected ':' here" ) || |
| 8090 | parseUInt32(TTRes.SizeM1BitWidth)) |
| 8091 | return true; |
| 8092 | |
| 8093 | // parse optional fields |
| 8094 | while (EatIfPresent(lltok::comma)) { |
| 8095 | switch (Lex.getKind()) { |
| 8096 | case lltok::kw_alignLog2: |
| 8097 | Lex.Lex(); |
| 8098 | if (parseToken(lltok::colon, "expected ':'" ) || |
| 8099 | parseUInt64(TTRes.AlignLog2)) |
| 8100 | return true; |
| 8101 | break; |
| 8102 | case lltok::kw_sizeM1: |
| 8103 | Lex.Lex(); |
| 8104 | if (parseToken(lltok::colon, "expected ':'" ) || parseUInt64(TTRes.SizeM1)) |
| 8105 | return true; |
| 8106 | break; |
| 8107 | case lltok::kw_bitMask: { |
| 8108 | unsigned Val; |
| 8109 | Lex.Lex(); |
| 8110 | if (parseToken(lltok::colon, "expected ':'" ) || parseUInt32(Val)) |
| 8111 | return true; |
| 8112 | assert(Val <= 0xff); |
| 8113 | TTRes.BitMask = (uint8_t)Val; |
| 8114 | break; |
| 8115 | } |
| 8116 | case lltok::kw_inlineBits: |
| 8117 | Lex.Lex(); |
| 8118 | if (parseToken(lltok::colon, "expected ':'" ) || |
| 8119 | parseUInt64(TTRes.InlineBits)) |
| 8120 | return true; |
| 8121 | break; |
| 8122 | default: |
| 8123 | return error(Lex.getLoc(), "expected optional TypeTestResolution field" ); |
| 8124 | } |
| 8125 | } |
| 8126 | |
| 8127 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 8128 | return true; |
| 8129 | |
| 8130 | return false; |
| 8131 | } |
| 8132 | |
| 8133 | /// OptionalWpdResolutions |
| 8134 | /// ::= 'wpsResolutions' ':' '(' WpdResolution [',' WpdResolution]* ')' |
| 8135 | /// WpdResolution ::= '(' 'offset' ':' UInt64 ',' WpdRes ')' |
| 8136 | bool LLParser::parseOptionalWpdResolutions( |
| 8137 | std::map<uint64_t, WholeProgramDevirtResolution> &WPDResMap) { |
| 8138 | if (parseToken(lltok::kw_wpdResolutions, "expected 'wpdResolutions' here" ) || |
| 8139 | parseToken(lltok::colon, "expected ':' here" ) || |
| 8140 | parseToken(lltok::lparen, "expected '(' here" )) |
| 8141 | return true; |
| 8142 | |
| 8143 | do { |
| 8144 | uint64_t Offset; |
| 8145 | WholeProgramDevirtResolution WPDRes; |
| 8146 | if (parseToken(lltok::lparen, "expected '(' here" ) || |
| 8147 | parseToken(lltok::kw_offset, "expected 'offset' here" ) || |
| 8148 | parseToken(lltok::colon, "expected ':' here" ) || parseUInt64(Offset) || |
| 8149 | parseToken(lltok::comma, "expected ',' here" ) || parseWpdRes(WPDRes) || |
| 8150 | parseToken(lltok::rparen, "expected ')' here" )) |
| 8151 | return true; |
| 8152 | WPDResMap[Offset] = WPDRes; |
| 8153 | } while (EatIfPresent(lltok::comma)); |
| 8154 | |
| 8155 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 8156 | return true; |
| 8157 | |
| 8158 | return false; |
| 8159 | } |
| 8160 | |
| 8161 | /// WpdRes |
| 8162 | /// ::= 'wpdRes' ':' '(' 'kind' ':' 'indir' |
| 8163 | /// [',' OptionalResByArg]? ')' |
| 8164 | /// ::= 'wpdRes' ':' '(' 'kind' ':' 'singleImpl' |
| 8165 | /// ',' 'singleImplName' ':' STRINGCONSTANT ',' |
| 8166 | /// [',' OptionalResByArg]? ')' |
| 8167 | /// ::= 'wpdRes' ':' '(' 'kind' ':' 'branchFunnel' |
| 8168 | /// [',' OptionalResByArg]? ')' |
| 8169 | bool LLParser::parseWpdRes(WholeProgramDevirtResolution &WPDRes) { |
| 8170 | if (parseToken(lltok::kw_wpdRes, "expected 'wpdRes' here" ) || |
| 8171 | parseToken(lltok::colon, "expected ':' here" ) || |
| 8172 | parseToken(lltok::lparen, "expected '(' here" ) || |
| 8173 | parseToken(lltok::kw_kind, "expected 'kind' here" ) || |
| 8174 | parseToken(lltok::colon, "expected ':' here" )) |
| 8175 | return true; |
| 8176 | |
| 8177 | switch (Lex.getKind()) { |
| 8178 | case lltok::kw_indir: |
| 8179 | WPDRes.TheKind = WholeProgramDevirtResolution::Indir; |
| 8180 | break; |
| 8181 | case lltok::kw_singleImpl: |
| 8182 | WPDRes.TheKind = WholeProgramDevirtResolution::SingleImpl; |
| 8183 | break; |
| 8184 | case lltok::kw_branchFunnel: |
| 8185 | WPDRes.TheKind = WholeProgramDevirtResolution::BranchFunnel; |
| 8186 | break; |
| 8187 | default: |
| 8188 | return error(Lex.getLoc(), "unexpected WholeProgramDevirtResolution kind" ); |
| 8189 | } |
| 8190 | Lex.Lex(); |
| 8191 | |
| 8192 | // parse optional fields |
| 8193 | while (EatIfPresent(lltok::comma)) { |
| 8194 | switch (Lex.getKind()) { |
| 8195 | case lltok::kw_singleImplName: |
| 8196 | Lex.Lex(); |
| 8197 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 8198 | parseStringConstant(WPDRes.SingleImplName)) |
| 8199 | return true; |
| 8200 | break; |
| 8201 | case lltok::kw_resByArg: |
| 8202 | if (parseOptionalResByArg(WPDRes.ResByArg)) |
| 8203 | return true; |
| 8204 | break; |
| 8205 | default: |
| 8206 | return error(Lex.getLoc(), |
| 8207 | "expected optional WholeProgramDevirtResolution field" ); |
| 8208 | } |
| 8209 | } |
| 8210 | |
| 8211 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 8212 | return true; |
| 8213 | |
| 8214 | return false; |
| 8215 | } |
| 8216 | |
| 8217 | /// OptionalResByArg |
| 8218 | /// ::= 'wpdRes' ':' '(' ResByArg[, ResByArg]* ')' |
| 8219 | /// ResByArg ::= Args ',' 'byArg' ':' '(' 'kind' ':' |
| 8220 | /// ( 'indir' | 'uniformRetVal' | 'UniqueRetVal' | |
| 8221 | /// 'virtualConstProp' ) |
| 8222 | /// [',' 'info' ':' UInt64]? [',' 'byte' ':' UInt32]? |
| 8223 | /// [',' 'bit' ':' UInt32]? ')' |
| 8224 | bool LLParser::parseOptionalResByArg( |
| 8225 | std::map<std::vector<uint64_t>, WholeProgramDevirtResolution::ByArg> |
| 8226 | &ResByArg) { |
| 8227 | if (parseToken(lltok::kw_resByArg, "expected 'resByArg' here" ) || |
| 8228 | parseToken(lltok::colon, "expected ':' here" ) || |
| 8229 | parseToken(lltok::lparen, "expected '(' here" )) |
| 8230 | return true; |
| 8231 | |
| 8232 | do { |
| 8233 | std::vector<uint64_t> Args; |
| 8234 | if (parseArgs(Args) || parseToken(lltok::comma, "expected ',' here" ) || |
| 8235 | parseToken(lltok::kw_byArg, "expected 'byArg here" ) || |
| 8236 | parseToken(lltok::colon, "expected ':' here" ) || |
| 8237 | parseToken(lltok::lparen, "expected '(' here" ) || |
| 8238 | parseToken(lltok::kw_kind, "expected 'kind' here" ) || |
| 8239 | parseToken(lltok::colon, "expected ':' here" )) |
| 8240 | return true; |
| 8241 | |
| 8242 | WholeProgramDevirtResolution::ByArg ByArg; |
| 8243 | switch (Lex.getKind()) { |
| 8244 | case lltok::kw_indir: |
| 8245 | ByArg.TheKind = WholeProgramDevirtResolution::ByArg::Indir; |
| 8246 | break; |
| 8247 | case lltok::kw_uniformRetVal: |
| 8248 | ByArg.TheKind = WholeProgramDevirtResolution::ByArg::UniformRetVal; |
| 8249 | break; |
| 8250 | case lltok::kw_uniqueRetVal: |
| 8251 | ByArg.TheKind = WholeProgramDevirtResolution::ByArg::UniqueRetVal; |
| 8252 | break; |
| 8253 | case lltok::kw_virtualConstProp: |
| 8254 | ByArg.TheKind = WholeProgramDevirtResolution::ByArg::VirtualConstProp; |
| 8255 | break; |
| 8256 | default: |
| 8257 | return error(Lex.getLoc(), |
| 8258 | "unexpected WholeProgramDevirtResolution::ByArg kind" ); |
| 8259 | } |
| 8260 | Lex.Lex(); |
| 8261 | |
| 8262 | // parse optional fields |
| 8263 | while (EatIfPresent(lltok::comma)) { |
| 8264 | switch (Lex.getKind()) { |
| 8265 | case lltok::kw_info: |
| 8266 | Lex.Lex(); |
| 8267 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 8268 | parseUInt64(ByArg.Info)) |
| 8269 | return true; |
| 8270 | break; |
| 8271 | case lltok::kw_byte: |
| 8272 | Lex.Lex(); |
| 8273 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 8274 | parseUInt32(ByArg.Byte)) |
| 8275 | return true; |
| 8276 | break; |
| 8277 | case lltok::kw_bit: |
| 8278 | Lex.Lex(); |
| 8279 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 8280 | parseUInt32(ByArg.Bit)) |
| 8281 | return true; |
| 8282 | break; |
| 8283 | default: |
| 8284 | return error(Lex.getLoc(), |
| 8285 | "expected optional whole program devirt field" ); |
| 8286 | } |
| 8287 | } |
| 8288 | |
| 8289 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 8290 | return true; |
| 8291 | |
| 8292 | ResByArg[Args] = ByArg; |
| 8293 | } while (EatIfPresent(lltok::comma)); |
| 8294 | |
| 8295 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 8296 | return true; |
| 8297 | |
| 8298 | return false; |
| 8299 | } |
| 8300 | |
| 8301 | /// OptionalResByArg |
| 8302 | /// ::= 'args' ':' '(' UInt64[, UInt64]* ')' |
| 8303 | bool LLParser::parseArgs(std::vector<uint64_t> &Args) { |
| 8304 | if (parseToken(lltok::kw_args, "expected 'args' here" ) || |
| 8305 | parseToken(lltok::colon, "expected ':' here" ) || |
| 8306 | parseToken(lltok::lparen, "expected '(' here" )) |
| 8307 | return true; |
| 8308 | |
| 8309 | do { |
| 8310 | uint64_t Val; |
| 8311 | if (parseUInt64(Val)) |
| 8312 | return true; |
| 8313 | Args.push_back(Val); |
| 8314 | } while (EatIfPresent(lltok::comma)); |
| 8315 | |
| 8316 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 8317 | return true; |
| 8318 | |
| 8319 | return false; |
| 8320 | } |
| 8321 | |
| 8322 | static const auto FwdVIRef = (GlobalValueSummaryMapTy::value_type *)-8; |
| 8323 | |
| 8324 | static void resolveFwdRef(ValueInfo *Fwd, ValueInfo &Resolved) { |
| 8325 | bool ReadOnly = Fwd->isReadOnly(); |
| 8326 | bool WriteOnly = Fwd->isWriteOnly(); |
| 8327 | assert(!(ReadOnly && WriteOnly)); |
| 8328 | *Fwd = Resolved; |
| 8329 | if (ReadOnly) |
| 8330 | Fwd->setReadOnly(); |
| 8331 | if (WriteOnly) |
| 8332 | Fwd->setWriteOnly(); |
| 8333 | } |
| 8334 | |
| 8335 | /// Stores the given Name/GUID and associated summary into the Index. |
| 8336 | /// Also updates any forward references to the associated entry ID. |
| 8337 | void LLParser::addGlobalValueToIndex( |
| 8338 | std::string Name, GlobalValue::GUID GUID, GlobalValue::LinkageTypes Linkage, |
| 8339 | unsigned ID, std::unique_ptr<GlobalValueSummary> Summary) { |
| 8340 | // First create the ValueInfo utilizing the Name or GUID. |
| 8341 | ValueInfo VI; |
| 8342 | if (GUID != 0) { |
| 8343 | assert(Name.empty()); |
| 8344 | VI = Index->getOrInsertValueInfo(GUID); |
| 8345 | } else { |
| 8346 | assert(!Name.empty()); |
| 8347 | if (M) { |
| 8348 | auto *GV = M->getNamedValue(Name); |
| 8349 | assert(GV); |
| 8350 | VI = Index->getOrInsertValueInfo(GV); |
| 8351 | } else { |
| 8352 | assert( |
| 8353 | (!GlobalValue::isLocalLinkage(Linkage) || !SourceFileName.empty()) && |
| 8354 | "Need a source_filename to compute GUID for local" ); |
| 8355 | GUID = GlobalValue::getGUID( |
| 8356 | GlobalValue::getGlobalIdentifier(Name, Linkage, SourceFileName)); |
| 8357 | VI = Index->getOrInsertValueInfo(GUID, Index->saveString(Name)); |
| 8358 | } |
| 8359 | } |
| 8360 | |
| 8361 | // Resolve forward references from calls/refs |
| 8362 | auto FwdRefVIs = ForwardRefValueInfos.find(ID); |
| 8363 | if (FwdRefVIs != ForwardRefValueInfos.end()) { |
| 8364 | for (auto VIRef : FwdRefVIs->second) { |
| 8365 | assert(VIRef.first->getRef() == FwdVIRef && |
| 8366 | "Forward referenced ValueInfo expected to be empty" ); |
| 8367 | resolveFwdRef(VIRef.first, VI); |
| 8368 | } |
| 8369 | ForwardRefValueInfos.erase(FwdRefVIs); |
| 8370 | } |
| 8371 | |
| 8372 | // Resolve forward references from aliases |
| 8373 | auto FwdRefAliasees = ForwardRefAliasees.find(ID); |
| 8374 | if (FwdRefAliasees != ForwardRefAliasees.end()) { |
| 8375 | for (auto AliaseeRef : FwdRefAliasees->second) { |
| 8376 | assert(!AliaseeRef.first->hasAliasee() && |
| 8377 | "Forward referencing alias already has aliasee" ); |
| 8378 | assert(Summary && "Aliasee must be a definition" ); |
| 8379 | AliaseeRef.first->setAliasee(VI, Summary.get()); |
| 8380 | } |
| 8381 | ForwardRefAliasees.erase(FwdRefAliasees); |
| 8382 | } |
| 8383 | |
| 8384 | // Add the summary if one was provided. |
| 8385 | if (Summary) |
| 8386 | Index->addGlobalValueSummary(VI, std::move(Summary)); |
| 8387 | |
| 8388 | // Save the associated ValueInfo for use in later references by ID. |
| 8389 | if (ID == NumberedValueInfos.size()) |
| 8390 | NumberedValueInfos.push_back(VI); |
| 8391 | else { |
| 8392 | // Handle non-continuous numbers (to make test simplification easier). |
| 8393 | if (ID > NumberedValueInfos.size()) |
| 8394 | NumberedValueInfos.resize(ID + 1); |
| 8395 | NumberedValueInfos[ID] = VI; |
| 8396 | } |
| 8397 | } |
| 8398 | |
| 8399 | /// parseSummaryIndexFlags |
| 8400 | /// ::= 'flags' ':' UInt64 |
| 8401 | bool LLParser::parseSummaryIndexFlags() { |
| 8402 | assert(Lex.getKind() == lltok::kw_flags); |
| 8403 | Lex.Lex(); |
| 8404 | |
| 8405 | if (parseToken(lltok::colon, "expected ':' here" )) |
| 8406 | return true; |
| 8407 | uint64_t Flags; |
| 8408 | if (parseUInt64(Flags)) |
| 8409 | return true; |
| 8410 | if (Index) |
| 8411 | Index->setFlags(Flags); |
| 8412 | return false; |
| 8413 | } |
| 8414 | |
| 8415 | /// parseBlockCount |
| 8416 | /// ::= 'blockcount' ':' UInt64 |
| 8417 | bool LLParser::parseBlockCount() { |
| 8418 | assert(Lex.getKind() == lltok::kw_blockcount); |
| 8419 | Lex.Lex(); |
| 8420 | |
| 8421 | if (parseToken(lltok::colon, "expected ':' here" )) |
| 8422 | return true; |
| 8423 | uint64_t BlockCount; |
| 8424 | if (parseUInt64(BlockCount)) |
| 8425 | return true; |
| 8426 | if (Index) |
| 8427 | Index->setBlockCount(BlockCount); |
| 8428 | return false; |
| 8429 | } |
| 8430 | |
| 8431 | /// parseGVEntry |
| 8432 | /// ::= 'gv' ':' '(' ('name' ':' STRINGCONSTANT | 'guid' ':' UInt64) |
| 8433 | /// [',' 'summaries' ':' Summary[',' Summary]* ]? ')' |
| 8434 | /// Summary ::= '(' (FunctionSummary | VariableSummary | AliasSummary) ')' |
| 8435 | bool LLParser::parseGVEntry(unsigned ID) { |
| 8436 | assert(Lex.getKind() == lltok::kw_gv); |
| 8437 | Lex.Lex(); |
| 8438 | |
| 8439 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 8440 | parseToken(lltok::lparen, "expected '(' here" )) |
| 8441 | return true; |
| 8442 | |
| 8443 | std::string Name; |
| 8444 | GlobalValue::GUID GUID = 0; |
| 8445 | switch (Lex.getKind()) { |
| 8446 | case lltok::kw_name: |
| 8447 | Lex.Lex(); |
| 8448 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 8449 | parseStringConstant(Name)) |
| 8450 | return true; |
| 8451 | // Can't create GUID/ValueInfo until we have the linkage. |
| 8452 | break; |
| 8453 | case lltok::kw_guid: |
| 8454 | Lex.Lex(); |
| 8455 | if (parseToken(lltok::colon, "expected ':' here" ) || parseUInt64(GUID)) |
| 8456 | return true; |
| 8457 | break; |
| 8458 | default: |
| 8459 | return error(Lex.getLoc(), "expected name or guid tag" ); |
| 8460 | } |
| 8461 | |
| 8462 | if (!EatIfPresent(lltok::comma)) { |
| 8463 | // No summaries. Wrap up. |
| 8464 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 8465 | return true; |
| 8466 | // This was created for a call to an external or indirect target. |
| 8467 | // A GUID with no summary came from a VALUE_GUID record, dummy GUID |
| 8468 | // created for indirect calls with VP. A Name with no GUID came from |
| 8469 | // an external definition. We pass ExternalLinkage since that is only |
| 8470 | // used when the GUID must be computed from Name, and in that case |
| 8471 | // the symbol must have external linkage. |
| 8472 | addGlobalValueToIndex(Name, GUID, GlobalValue::ExternalLinkage, ID, |
| 8473 | nullptr); |
| 8474 | return false; |
| 8475 | } |
| 8476 | |
| 8477 | // Have a list of summaries |
| 8478 | if (parseToken(lltok::kw_summaries, "expected 'summaries' here" ) || |
| 8479 | parseToken(lltok::colon, "expected ':' here" ) || |
| 8480 | parseToken(lltok::lparen, "expected '(' here" )) |
| 8481 | return true; |
| 8482 | do { |
| 8483 | switch (Lex.getKind()) { |
| 8484 | case lltok::kw_function: |
| 8485 | if (parseFunctionSummary(Name, GUID, ID)) |
| 8486 | return true; |
| 8487 | break; |
| 8488 | case lltok::kw_variable: |
| 8489 | if (parseVariableSummary(Name, GUID, ID)) |
| 8490 | return true; |
| 8491 | break; |
| 8492 | case lltok::kw_alias: |
| 8493 | if (parseAliasSummary(Name, GUID, ID)) |
| 8494 | return true; |
| 8495 | break; |
| 8496 | default: |
| 8497 | return error(Lex.getLoc(), "expected summary type" ); |
| 8498 | } |
| 8499 | } while (EatIfPresent(lltok::comma)); |
| 8500 | |
| 8501 | if (parseToken(lltok::rparen, "expected ')' here" ) || |
| 8502 | parseToken(lltok::rparen, "expected ')' here" )) |
| 8503 | return true; |
| 8504 | |
| 8505 | return false; |
| 8506 | } |
| 8507 | |
| 8508 | /// FunctionSummary |
| 8509 | /// ::= 'function' ':' '(' 'module' ':' ModuleReference ',' GVFlags |
| 8510 | /// ',' 'insts' ':' UInt32 [',' OptionalFFlags]? [',' OptionalCalls]? |
| 8511 | /// [',' OptionalTypeIdInfo]? [',' OptionalParamAccesses]? |
| 8512 | /// [',' OptionalRefs]? ')' |
| 8513 | bool LLParser::parseFunctionSummary(std::string Name, GlobalValue::GUID GUID, |
| 8514 | unsigned ID) { |
| 8515 | assert(Lex.getKind() == lltok::kw_function); |
| 8516 | Lex.Lex(); |
| 8517 | |
| 8518 | StringRef ModulePath; |
| 8519 | GlobalValueSummary::GVFlags GVFlags = GlobalValueSummary::GVFlags( |
| 8520 | /*Linkage=*/GlobalValue::ExternalLinkage, /*NotEligibleToImport=*/false, |
| 8521 | /*Live=*/false, /*IsLocal=*/false, /*CanAutoHide=*/false); |
| 8522 | unsigned InstCount; |
| 8523 | std::vector<FunctionSummary::EdgeTy> Calls; |
| 8524 | FunctionSummary::TypeIdInfo TypeIdInfo; |
| 8525 | std::vector<FunctionSummary::ParamAccess> ParamAccesses; |
| 8526 | std::vector<ValueInfo> Refs; |
| 8527 | // Default is all-zeros (conservative values). |
| 8528 | FunctionSummary::FFlags FFlags = {}; |
| 8529 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 8530 | parseToken(lltok::lparen, "expected '(' here" ) || |
| 8531 | parseModuleReference(ModulePath) || |
| 8532 | parseToken(lltok::comma, "expected ',' here" ) || parseGVFlags(GVFlags) || |
| 8533 | parseToken(lltok::comma, "expected ',' here" ) || |
| 8534 | parseToken(lltok::kw_insts, "expected 'insts' here" ) || |
| 8535 | parseToken(lltok::colon, "expected ':' here" ) || parseUInt32(InstCount)) |
| 8536 | return true; |
| 8537 | |
| 8538 | // parse optional fields |
| 8539 | while (EatIfPresent(lltok::comma)) { |
| 8540 | switch (Lex.getKind()) { |
| 8541 | case lltok::kw_funcFlags: |
| 8542 | if (parseOptionalFFlags(FFlags)) |
| 8543 | return true; |
| 8544 | break; |
| 8545 | case lltok::kw_calls: |
| 8546 | if (parseOptionalCalls(Calls)) |
| 8547 | return true; |
| 8548 | break; |
| 8549 | case lltok::kw_typeIdInfo: |
| 8550 | if (parseOptionalTypeIdInfo(TypeIdInfo)) |
| 8551 | return true; |
| 8552 | break; |
| 8553 | case lltok::kw_refs: |
| 8554 | if (parseOptionalRefs(Refs)) |
| 8555 | return true; |
| 8556 | break; |
| 8557 | case lltok::kw_params: |
| 8558 | if (parseOptionalParamAccesses(ParamAccesses)) |
| 8559 | return true; |
| 8560 | break; |
| 8561 | default: |
| 8562 | return error(Lex.getLoc(), "expected optional function summary field" ); |
| 8563 | } |
| 8564 | } |
| 8565 | |
| 8566 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 8567 | return true; |
| 8568 | |
| 8569 | auto FS = std::make_unique<FunctionSummary>( |
| 8570 | GVFlags, InstCount, FFlags, /*EntryCount=*/0, std::move(Refs), |
| 8571 | std::move(Calls), std::move(TypeIdInfo.TypeTests), |
| 8572 | std::move(TypeIdInfo.TypeTestAssumeVCalls), |
| 8573 | std::move(TypeIdInfo.TypeCheckedLoadVCalls), |
| 8574 | std::move(TypeIdInfo.TypeTestAssumeConstVCalls), |
| 8575 | std::move(TypeIdInfo.TypeCheckedLoadConstVCalls), |
| 8576 | std::move(ParamAccesses)); |
| 8577 | |
| 8578 | FS->setModulePath(ModulePath); |
| 8579 | |
| 8580 | addGlobalValueToIndex(Name, GUID, (GlobalValue::LinkageTypes)GVFlags.Linkage, |
| 8581 | ID, std::move(FS)); |
| 8582 | |
| 8583 | return false; |
| 8584 | } |
| 8585 | |
| 8586 | /// VariableSummary |
| 8587 | /// ::= 'variable' ':' '(' 'module' ':' ModuleReference ',' GVFlags |
| 8588 | /// [',' OptionalRefs]? ')' |
| 8589 | bool LLParser::parseVariableSummary(std::string Name, GlobalValue::GUID GUID, |
| 8590 | unsigned ID) { |
| 8591 | assert(Lex.getKind() == lltok::kw_variable); |
| 8592 | Lex.Lex(); |
| 8593 | |
| 8594 | StringRef ModulePath; |
| 8595 | GlobalValueSummary::GVFlags GVFlags = GlobalValueSummary::GVFlags( |
| 8596 | /*Linkage=*/GlobalValue::ExternalLinkage, /*NotEligibleToImport=*/false, |
| 8597 | /*Live=*/false, /*IsLocal=*/false, /*CanAutoHide=*/false); |
| 8598 | GlobalVarSummary::GVarFlags GVarFlags(/*ReadOnly*/ false, |
| 8599 | /* WriteOnly */ false, |
| 8600 | /* Constant */ false, |
| 8601 | GlobalObject::VCallVisibilityPublic); |
| 8602 | std::vector<ValueInfo> Refs; |
| 8603 | VTableFuncList VTableFuncs; |
| 8604 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 8605 | parseToken(lltok::lparen, "expected '(' here" ) || |
| 8606 | parseModuleReference(ModulePath) || |
| 8607 | parseToken(lltok::comma, "expected ',' here" ) || parseGVFlags(GVFlags) || |
| 8608 | parseToken(lltok::comma, "expected ',' here" ) || |
| 8609 | parseGVarFlags(GVarFlags)) |
| 8610 | return true; |
| 8611 | |
| 8612 | // parse optional fields |
| 8613 | while (EatIfPresent(lltok::comma)) { |
| 8614 | switch (Lex.getKind()) { |
| 8615 | case lltok::kw_vTableFuncs: |
| 8616 | if (parseOptionalVTableFuncs(VTableFuncs)) |
| 8617 | return true; |
| 8618 | break; |
| 8619 | case lltok::kw_refs: |
| 8620 | if (parseOptionalRefs(Refs)) |
| 8621 | return true; |
| 8622 | break; |
| 8623 | default: |
| 8624 | return error(Lex.getLoc(), "expected optional variable summary field" ); |
| 8625 | } |
| 8626 | } |
| 8627 | |
| 8628 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 8629 | return true; |
| 8630 | |
| 8631 | auto GS = |
| 8632 | std::make_unique<GlobalVarSummary>(GVFlags, GVarFlags, std::move(Refs)); |
| 8633 | |
| 8634 | GS->setModulePath(ModulePath); |
| 8635 | GS->setVTableFuncs(std::move(VTableFuncs)); |
| 8636 | |
| 8637 | addGlobalValueToIndex(Name, GUID, (GlobalValue::LinkageTypes)GVFlags.Linkage, |
| 8638 | ID, std::move(GS)); |
| 8639 | |
| 8640 | return false; |
| 8641 | } |
| 8642 | |
| 8643 | /// AliasSummary |
| 8644 | /// ::= 'alias' ':' '(' 'module' ':' ModuleReference ',' GVFlags ',' |
| 8645 | /// 'aliasee' ':' GVReference ')' |
| 8646 | bool LLParser::parseAliasSummary(std::string Name, GlobalValue::GUID GUID, |
| 8647 | unsigned ID) { |
| 8648 | assert(Lex.getKind() == lltok::kw_alias); |
| 8649 | LocTy Loc = Lex.getLoc(); |
| 8650 | Lex.Lex(); |
| 8651 | |
| 8652 | StringRef ModulePath; |
| 8653 | GlobalValueSummary::GVFlags GVFlags = GlobalValueSummary::GVFlags( |
| 8654 | /*Linkage=*/GlobalValue::ExternalLinkage, /*NotEligibleToImport=*/false, |
| 8655 | /*Live=*/false, /*IsLocal=*/false, /*CanAutoHide=*/false); |
| 8656 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 8657 | parseToken(lltok::lparen, "expected '(' here" ) || |
| 8658 | parseModuleReference(ModulePath) || |
| 8659 | parseToken(lltok::comma, "expected ',' here" ) || parseGVFlags(GVFlags) || |
| 8660 | parseToken(lltok::comma, "expected ',' here" ) || |
| 8661 | parseToken(lltok::kw_aliasee, "expected 'aliasee' here" ) || |
| 8662 | parseToken(lltok::colon, "expected ':' here" )) |
| 8663 | return true; |
| 8664 | |
| 8665 | ValueInfo AliaseeVI; |
| 8666 | unsigned GVId; |
| 8667 | if (parseGVReference(AliaseeVI, GVId)) |
| 8668 | return true; |
| 8669 | |
| 8670 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 8671 | return true; |
| 8672 | |
| 8673 | auto AS = std::make_unique<AliasSummary>(GVFlags); |
| 8674 | |
| 8675 | AS->setModulePath(ModulePath); |
| 8676 | |
| 8677 | // Record forward reference if the aliasee is not parsed yet. |
| 8678 | if (AliaseeVI.getRef() == FwdVIRef) { |
| 8679 | ForwardRefAliasees[GVId].emplace_back(AS.get(), Loc); |
| 8680 | } else { |
| 8681 | auto Summary = Index->findSummaryInModule(AliaseeVI, ModulePath); |
| 8682 | assert(Summary && "Aliasee must be a definition" ); |
| 8683 | AS->setAliasee(AliaseeVI, Summary); |
| 8684 | } |
| 8685 | |
| 8686 | addGlobalValueToIndex(Name, GUID, (GlobalValue::LinkageTypes)GVFlags.Linkage, |
| 8687 | ID, std::move(AS)); |
| 8688 | |
| 8689 | return false; |
| 8690 | } |
| 8691 | |
| 8692 | /// Flag |
| 8693 | /// ::= [0|1] |
| 8694 | bool LLParser::parseFlag(unsigned &Val) { |
| 8695 | if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned()) |
| 8696 | return tokError("expected integer" ); |
| 8697 | Val = (unsigned)Lex.getAPSIntVal().getBoolValue(); |
| 8698 | Lex.Lex(); |
| 8699 | return false; |
| 8700 | } |
| 8701 | |
| 8702 | /// OptionalFFlags |
| 8703 | /// := 'funcFlags' ':' '(' ['readNone' ':' Flag]? |
| 8704 | /// [',' 'readOnly' ':' Flag]? [',' 'noRecurse' ':' Flag]? |
| 8705 | /// [',' 'returnDoesNotAlias' ':' Flag]? ')' |
| 8706 | /// [',' 'noInline' ':' Flag]? ')' |
| 8707 | /// [',' 'alwaysInline' ':' Flag]? ')' |
| 8708 | |
| 8709 | bool LLParser::parseOptionalFFlags(FunctionSummary::FFlags &FFlags) { |
| 8710 | assert(Lex.getKind() == lltok::kw_funcFlags); |
| 8711 | Lex.Lex(); |
| 8712 | |
| 8713 | if (parseToken(lltok::colon, "expected ':' in funcFlags" ) | |
| 8714 | parseToken(lltok::lparen, "expected '(' in funcFlags" )) |
| 8715 | return true; |
| 8716 | |
| 8717 | do { |
| 8718 | unsigned Val = 0; |
| 8719 | switch (Lex.getKind()) { |
| 8720 | case lltok::kw_readNone: |
| 8721 | Lex.Lex(); |
| 8722 | if (parseToken(lltok::colon, "expected ':'" ) || parseFlag(Val)) |
| 8723 | return true; |
| 8724 | FFlags.ReadNone = Val; |
| 8725 | break; |
| 8726 | case lltok::kw_readOnly: |
| 8727 | Lex.Lex(); |
| 8728 | if (parseToken(lltok::colon, "expected ':'" ) || parseFlag(Val)) |
| 8729 | return true; |
| 8730 | FFlags.ReadOnly = Val; |
| 8731 | break; |
| 8732 | case lltok::kw_noRecurse: |
| 8733 | Lex.Lex(); |
| 8734 | if (parseToken(lltok::colon, "expected ':'" ) || parseFlag(Val)) |
| 8735 | return true; |
| 8736 | FFlags.NoRecurse = Val; |
| 8737 | break; |
| 8738 | case lltok::kw_returnDoesNotAlias: |
| 8739 | Lex.Lex(); |
| 8740 | if (parseToken(lltok::colon, "expected ':'" ) || parseFlag(Val)) |
| 8741 | return true; |
| 8742 | FFlags.ReturnDoesNotAlias = Val; |
| 8743 | break; |
| 8744 | case lltok::kw_noInline: |
| 8745 | Lex.Lex(); |
| 8746 | if (parseToken(lltok::colon, "expected ':'" ) || parseFlag(Val)) |
| 8747 | return true; |
| 8748 | FFlags.NoInline = Val; |
| 8749 | break; |
| 8750 | case lltok::kw_alwaysInline: |
| 8751 | Lex.Lex(); |
| 8752 | if (parseToken(lltok::colon, "expected ':'" ) || parseFlag(Val)) |
| 8753 | return true; |
| 8754 | FFlags.AlwaysInline = Val; |
| 8755 | break; |
| 8756 | default: |
| 8757 | return error(Lex.getLoc(), "expected function flag type" ); |
| 8758 | } |
| 8759 | } while (EatIfPresent(lltok::comma)); |
| 8760 | |
| 8761 | if (parseToken(lltok::rparen, "expected ')' in funcFlags" )) |
| 8762 | return true; |
| 8763 | |
| 8764 | return false; |
| 8765 | } |
| 8766 | |
| 8767 | /// OptionalCalls |
| 8768 | /// := 'calls' ':' '(' Call [',' Call]* ')' |
| 8769 | /// Call ::= '(' 'callee' ':' GVReference |
| 8770 | /// [( ',' 'hotness' ':' Hotness | ',' 'relbf' ':' UInt32 )]? ')' |
| 8771 | bool LLParser::parseOptionalCalls(std::vector<FunctionSummary::EdgeTy> &Calls) { |
| 8772 | assert(Lex.getKind() == lltok::kw_calls); |
| 8773 | Lex.Lex(); |
| 8774 | |
| 8775 | if (parseToken(lltok::colon, "expected ':' in calls" ) | |
| 8776 | parseToken(lltok::lparen, "expected '(' in calls" )) |
| 8777 | return true; |
| 8778 | |
| 8779 | IdToIndexMapType IdToIndexMap; |
| 8780 | // parse each call edge |
| 8781 | do { |
| 8782 | ValueInfo VI; |
| 8783 | if (parseToken(lltok::lparen, "expected '(' in call" ) || |
| 8784 | parseToken(lltok::kw_callee, "expected 'callee' in call" ) || |
| 8785 | parseToken(lltok::colon, "expected ':'" )) |
| 8786 | return true; |
| 8787 | |
| 8788 | LocTy Loc = Lex.getLoc(); |
| 8789 | unsigned GVId; |
| 8790 | if (parseGVReference(VI, GVId)) |
| 8791 | return true; |
| 8792 | |
| 8793 | CalleeInfo::HotnessType Hotness = CalleeInfo::HotnessType::Unknown; |
| 8794 | unsigned RelBF = 0; |
| 8795 | if (EatIfPresent(lltok::comma)) { |
| 8796 | // Expect either hotness or relbf |
| 8797 | if (EatIfPresent(lltok::kw_hotness)) { |
| 8798 | if (parseToken(lltok::colon, "expected ':'" ) || parseHotness(Hotness)) |
| 8799 | return true; |
| 8800 | } else { |
| 8801 | if (parseToken(lltok::kw_relbf, "expected relbf" ) || |
| 8802 | parseToken(lltok::colon, "expected ':'" ) || parseUInt32(RelBF)) |
| 8803 | return true; |
| 8804 | } |
| 8805 | } |
| 8806 | // Keep track of the Call array index needing a forward reference. |
| 8807 | // We will save the location of the ValueInfo needing an update, but |
| 8808 | // can only do so once the std::vector is finalized. |
| 8809 | if (VI.getRef() == FwdVIRef) |
| 8810 | IdToIndexMap[GVId].push_back(std::make_pair(Calls.size(), Loc)); |
| 8811 | Calls.push_back(FunctionSummary::EdgeTy{VI, CalleeInfo(Hotness, RelBF)}); |
| 8812 | |
| 8813 | if (parseToken(lltok::rparen, "expected ')' in call" )) |
| 8814 | return true; |
| 8815 | } while (EatIfPresent(lltok::comma)); |
| 8816 | |
| 8817 | // Now that the Calls vector is finalized, it is safe to save the locations |
| 8818 | // of any forward GV references that need updating later. |
| 8819 | for (auto I : IdToIndexMap) { |
| 8820 | auto &Infos = ForwardRefValueInfos[I.first]; |
| 8821 | for (auto P : I.second) { |
| 8822 | assert(Calls[P.first].first.getRef() == FwdVIRef && |
| 8823 | "Forward referenced ValueInfo expected to be empty" ); |
| 8824 | Infos.emplace_back(&Calls[P.first].first, P.second); |
| 8825 | } |
| 8826 | } |
| 8827 | |
| 8828 | if (parseToken(lltok::rparen, "expected ')' in calls" )) |
| 8829 | return true; |
| 8830 | |
| 8831 | return false; |
| 8832 | } |
| 8833 | |
| 8834 | /// Hotness |
| 8835 | /// := ('unknown'|'cold'|'none'|'hot'|'critical') |
| 8836 | bool LLParser::parseHotness(CalleeInfo::HotnessType &Hotness) { |
| 8837 | switch (Lex.getKind()) { |
| 8838 | case lltok::kw_unknown: |
| 8839 | Hotness = CalleeInfo::HotnessType::Unknown; |
| 8840 | break; |
| 8841 | case lltok::kw_cold: |
| 8842 | Hotness = CalleeInfo::HotnessType::Cold; |
| 8843 | break; |
| 8844 | case lltok::kw_none: |
| 8845 | Hotness = CalleeInfo::HotnessType::None; |
| 8846 | break; |
| 8847 | case lltok::kw_hot: |
| 8848 | Hotness = CalleeInfo::HotnessType::Hot; |
| 8849 | break; |
| 8850 | case lltok::kw_critical: |
| 8851 | Hotness = CalleeInfo::HotnessType::Critical; |
| 8852 | break; |
| 8853 | default: |
| 8854 | return error(Lex.getLoc(), "invalid call edge hotness" ); |
| 8855 | } |
| 8856 | Lex.Lex(); |
| 8857 | return false; |
| 8858 | } |
| 8859 | |
| 8860 | /// OptionalVTableFuncs |
| 8861 | /// := 'vTableFuncs' ':' '(' VTableFunc [',' VTableFunc]* ')' |
| 8862 | /// VTableFunc ::= '(' 'virtFunc' ':' GVReference ',' 'offset' ':' UInt64 ')' |
| 8863 | bool LLParser::parseOptionalVTableFuncs(VTableFuncList &VTableFuncs) { |
| 8864 | assert(Lex.getKind() == lltok::kw_vTableFuncs); |
| 8865 | Lex.Lex(); |
| 8866 | |
| 8867 | if (parseToken(lltok::colon, "expected ':' in vTableFuncs" ) | |
| 8868 | parseToken(lltok::lparen, "expected '(' in vTableFuncs" )) |
| 8869 | return true; |
| 8870 | |
| 8871 | IdToIndexMapType IdToIndexMap; |
| 8872 | // parse each virtual function pair |
| 8873 | do { |
| 8874 | ValueInfo VI; |
| 8875 | if (parseToken(lltok::lparen, "expected '(' in vTableFunc" ) || |
| 8876 | parseToken(lltok::kw_virtFunc, "expected 'callee' in vTableFunc" ) || |
| 8877 | parseToken(lltok::colon, "expected ':'" )) |
| 8878 | return true; |
| 8879 | |
| 8880 | LocTy Loc = Lex.getLoc(); |
| 8881 | unsigned GVId; |
| 8882 | if (parseGVReference(VI, GVId)) |
| 8883 | return true; |
| 8884 | |
| 8885 | uint64_t Offset; |
| 8886 | if (parseToken(lltok::comma, "expected comma" ) || |
| 8887 | parseToken(lltok::kw_offset, "expected offset" ) || |
| 8888 | parseToken(lltok::colon, "expected ':'" ) || parseUInt64(Offset)) |
| 8889 | return true; |
| 8890 | |
| 8891 | // Keep track of the VTableFuncs array index needing a forward reference. |
| 8892 | // We will save the location of the ValueInfo needing an update, but |
| 8893 | // can only do so once the std::vector is finalized. |
| 8894 | if (VI == EmptyVI) |
| 8895 | IdToIndexMap[GVId].push_back(std::make_pair(VTableFuncs.size(), Loc)); |
| 8896 | VTableFuncs.push_back({VI, Offset}); |
| 8897 | |
| 8898 | if (parseToken(lltok::rparen, "expected ')' in vTableFunc" )) |
| 8899 | return true; |
| 8900 | } while (EatIfPresent(lltok::comma)); |
| 8901 | |
| 8902 | // Now that the VTableFuncs vector is finalized, it is safe to save the |
| 8903 | // locations of any forward GV references that need updating later. |
| 8904 | for (auto I : IdToIndexMap) { |
| 8905 | auto &Infos = ForwardRefValueInfos[I.first]; |
| 8906 | for (auto P : I.second) { |
| 8907 | assert(VTableFuncs[P.first].FuncVI == EmptyVI && |
| 8908 | "Forward referenced ValueInfo expected to be empty" ); |
| 8909 | Infos.emplace_back(&VTableFuncs[P.first].FuncVI, P.second); |
| 8910 | } |
| 8911 | } |
| 8912 | |
| 8913 | if (parseToken(lltok::rparen, "expected ')' in vTableFuncs" )) |
| 8914 | return true; |
| 8915 | |
| 8916 | return false; |
| 8917 | } |
| 8918 | |
| 8919 | /// ParamNo := 'param' ':' UInt64 |
| 8920 | bool LLParser::parseParamNo(uint64_t &ParamNo) { |
| 8921 | if (parseToken(lltok::kw_param, "expected 'param' here" ) || |
| 8922 | parseToken(lltok::colon, "expected ':' here" ) || parseUInt64(ParamNo)) |
| 8923 | return true; |
| 8924 | return false; |
| 8925 | } |
| 8926 | |
| 8927 | /// ParamAccessOffset := 'offset' ':' '[' APSINTVAL ',' APSINTVAL ']' |
| 8928 | bool LLParser::parseParamAccessOffset(ConstantRange &Range) { |
| 8929 | APSInt Lower; |
| 8930 | APSInt Upper; |
| 8931 | auto ParseAPSInt = [&](APSInt &Val) { |
| 8932 | if (Lex.getKind() != lltok::APSInt) |
| 8933 | return tokError("expected integer" ); |
| 8934 | Val = Lex.getAPSIntVal(); |
| 8935 | Val = Val.extOrTrunc(FunctionSummary::ParamAccess::RangeWidth); |
| 8936 | Val.setIsSigned(true); |
| 8937 | Lex.Lex(); |
| 8938 | return false; |
| 8939 | }; |
| 8940 | if (parseToken(lltok::kw_offset, "expected 'offset' here" ) || |
| 8941 | parseToken(lltok::colon, "expected ':' here" ) || |
| 8942 | parseToken(lltok::lsquare, "expected '[' here" ) || ParseAPSInt(Lower) || |
| 8943 | parseToken(lltok::comma, "expected ',' here" ) || ParseAPSInt(Upper) || |
| 8944 | parseToken(lltok::rsquare, "expected ']' here" )) |
| 8945 | return true; |
| 8946 | |
| 8947 | ++Upper; |
| 8948 | Range = |
| 8949 | (Lower == Upper && !Lower.isMaxValue()) |
| 8950 | ? ConstantRange::getEmpty(FunctionSummary::ParamAccess::RangeWidth) |
| 8951 | : ConstantRange(Lower, Upper); |
| 8952 | |
| 8953 | return false; |
| 8954 | } |
| 8955 | |
| 8956 | /// ParamAccessCall |
| 8957 | /// := '(' 'callee' ':' GVReference ',' ParamNo ',' ParamAccessOffset ')' |
| 8958 | bool LLParser::parseParamAccessCall(FunctionSummary::ParamAccess::Call &Call, |
| 8959 | IdLocListType &IdLocList) { |
| 8960 | if (parseToken(lltok::lparen, "expected '(' here" ) || |
| 8961 | parseToken(lltok::kw_callee, "expected 'callee' here" ) || |
| 8962 | parseToken(lltok::colon, "expected ':' here" )) |
| 8963 | return true; |
| 8964 | |
| 8965 | unsigned GVId; |
| 8966 | ValueInfo VI; |
| 8967 | LocTy Loc = Lex.getLoc(); |
| 8968 | if (parseGVReference(VI, GVId)) |
| 8969 | return true; |
| 8970 | |
| 8971 | Call.Callee = VI; |
| 8972 | IdLocList.emplace_back(GVId, Loc); |
| 8973 | |
| 8974 | if (parseToken(lltok::comma, "expected ',' here" ) || |
| 8975 | parseParamNo(Call.ParamNo) || |
| 8976 | parseToken(lltok::comma, "expected ',' here" ) || |
| 8977 | parseParamAccessOffset(Call.Offsets)) |
| 8978 | return true; |
| 8979 | |
| 8980 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 8981 | return true; |
| 8982 | |
| 8983 | return false; |
| 8984 | } |
| 8985 | |
| 8986 | /// ParamAccess |
| 8987 | /// := '(' ParamNo ',' ParamAccessOffset [',' OptionalParamAccessCalls]? ')' |
| 8988 | /// OptionalParamAccessCalls := '(' Call [',' Call]* ')' |
| 8989 | bool LLParser::parseParamAccess(FunctionSummary::ParamAccess &Param, |
| 8990 | IdLocListType &IdLocList) { |
| 8991 | if (parseToken(lltok::lparen, "expected '(' here" ) || |
| 8992 | parseParamNo(Param.ParamNo) || |
| 8993 | parseToken(lltok::comma, "expected ',' here" ) || |
| 8994 | parseParamAccessOffset(Param.Use)) |
| 8995 | return true; |
| 8996 | |
| 8997 | if (EatIfPresent(lltok::comma)) { |
| 8998 | if (parseToken(lltok::kw_calls, "expected 'calls' here" ) || |
| 8999 | parseToken(lltok::colon, "expected ':' here" ) || |
| 9000 | parseToken(lltok::lparen, "expected '(' here" )) |
| 9001 | return true; |
| 9002 | do { |
| 9003 | FunctionSummary::ParamAccess::Call Call; |
| 9004 | if (parseParamAccessCall(Call, IdLocList)) |
| 9005 | return true; |
| 9006 | Param.Calls.push_back(Call); |
| 9007 | } while (EatIfPresent(lltok::comma)); |
| 9008 | |
| 9009 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 9010 | return true; |
| 9011 | } |
| 9012 | |
| 9013 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 9014 | return true; |
| 9015 | |
| 9016 | return false; |
| 9017 | } |
| 9018 | |
| 9019 | /// OptionalParamAccesses |
| 9020 | /// := 'params' ':' '(' ParamAccess [',' ParamAccess]* ')' |
| 9021 | bool LLParser::parseOptionalParamAccesses( |
| 9022 | std::vector<FunctionSummary::ParamAccess> &Params) { |
| 9023 | assert(Lex.getKind() == lltok::kw_params); |
| 9024 | Lex.Lex(); |
| 9025 | |
| 9026 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 9027 | parseToken(lltok::lparen, "expected '(' here" )) |
| 9028 | return true; |
| 9029 | |
| 9030 | IdLocListType VContexts; |
| 9031 | size_t CallsNum = 0; |
| 9032 | do { |
| 9033 | FunctionSummary::ParamAccess ParamAccess; |
| 9034 | if (parseParamAccess(ParamAccess, VContexts)) |
| 9035 | return true; |
| 9036 | CallsNum += ParamAccess.Calls.size(); |
| 9037 | assert(VContexts.size() == CallsNum); |
| 9038 | Params.emplace_back(std::move(ParamAccess)); |
| 9039 | } while (EatIfPresent(lltok::comma)); |
| 9040 | |
| 9041 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 9042 | return true; |
| 9043 | |
| 9044 | // Now that the Params is finalized, it is safe to save the locations |
| 9045 | // of any forward GV references that need updating later. |
| 9046 | IdLocListType::const_iterator ItContext = VContexts.begin(); |
| 9047 | for (auto &PA : Params) { |
| 9048 | for (auto &C : PA.Calls) { |
| 9049 | if (C.Callee.getRef() == FwdVIRef) |
| 9050 | ForwardRefValueInfos[ItContext->first].emplace_back(&C.Callee, |
| 9051 | ItContext->second); |
| 9052 | ++ItContext; |
| 9053 | } |
| 9054 | } |
| 9055 | assert(ItContext == VContexts.end()); |
| 9056 | |
| 9057 | return false; |
| 9058 | } |
| 9059 | |
| 9060 | /// OptionalRefs |
| 9061 | /// := 'refs' ':' '(' GVReference [',' GVReference]* ')' |
| 9062 | bool LLParser::parseOptionalRefs(std::vector<ValueInfo> &Refs) { |
| 9063 | assert(Lex.getKind() == lltok::kw_refs); |
| 9064 | Lex.Lex(); |
| 9065 | |
| 9066 | if (parseToken(lltok::colon, "expected ':' in refs" ) || |
| 9067 | parseToken(lltok::lparen, "expected '(' in refs" )) |
| 9068 | return true; |
| 9069 | |
| 9070 | struct ValueContext { |
| 9071 | ValueInfo VI; |
| 9072 | unsigned GVId; |
| 9073 | LocTy Loc; |
| 9074 | }; |
| 9075 | std::vector<ValueContext> VContexts; |
| 9076 | // parse each ref edge |
| 9077 | do { |
| 9078 | ValueContext VC; |
| 9079 | VC.Loc = Lex.getLoc(); |
| 9080 | if (parseGVReference(VC.VI, VC.GVId)) |
| 9081 | return true; |
| 9082 | VContexts.push_back(VC); |
| 9083 | } while (EatIfPresent(lltok::comma)); |
| 9084 | |
| 9085 | // Sort value contexts so that ones with writeonly |
| 9086 | // and readonly ValueInfo are at the end of VContexts vector. |
| 9087 | // See FunctionSummary::specialRefCounts() |
| 9088 | llvm::sort(VContexts, [](const ValueContext &VC1, const ValueContext &VC2) { |
| 9089 | return VC1.VI.getAccessSpecifier() < VC2.VI.getAccessSpecifier(); |
| 9090 | }); |
| 9091 | |
| 9092 | IdToIndexMapType IdToIndexMap; |
| 9093 | for (auto &VC : VContexts) { |
| 9094 | // Keep track of the Refs array index needing a forward reference. |
| 9095 | // We will save the location of the ValueInfo needing an update, but |
| 9096 | // can only do so once the std::vector is finalized. |
| 9097 | if (VC.VI.getRef() == FwdVIRef) |
| 9098 | IdToIndexMap[VC.GVId].push_back(std::make_pair(Refs.size(), VC.Loc)); |
| 9099 | Refs.push_back(VC.VI); |
| 9100 | } |
| 9101 | |
| 9102 | // Now that the Refs vector is finalized, it is safe to save the locations |
| 9103 | // of any forward GV references that need updating later. |
| 9104 | for (auto I : IdToIndexMap) { |
| 9105 | auto &Infos = ForwardRefValueInfos[I.first]; |
| 9106 | for (auto P : I.second) { |
| 9107 | assert(Refs[P.first].getRef() == FwdVIRef && |
| 9108 | "Forward referenced ValueInfo expected to be empty" ); |
| 9109 | Infos.emplace_back(&Refs[P.first], P.second); |
| 9110 | } |
| 9111 | } |
| 9112 | |
| 9113 | if (parseToken(lltok::rparen, "expected ')' in refs" )) |
| 9114 | return true; |
| 9115 | |
| 9116 | return false; |
| 9117 | } |
| 9118 | |
| 9119 | /// OptionalTypeIdInfo |
| 9120 | /// := 'typeidinfo' ':' '(' [',' TypeTests]? [',' TypeTestAssumeVCalls]? |
| 9121 | /// [',' TypeCheckedLoadVCalls]? [',' TypeTestAssumeConstVCalls]? |
| 9122 | /// [',' TypeCheckedLoadConstVCalls]? ')' |
| 9123 | bool LLParser::parseOptionalTypeIdInfo( |
| 9124 | FunctionSummary::TypeIdInfo &TypeIdInfo) { |
| 9125 | assert(Lex.getKind() == lltok::kw_typeIdInfo); |
| 9126 | Lex.Lex(); |
| 9127 | |
| 9128 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 9129 | parseToken(lltok::lparen, "expected '(' in typeIdInfo" )) |
| 9130 | return true; |
| 9131 | |
| 9132 | do { |
| 9133 | switch (Lex.getKind()) { |
| 9134 | case lltok::kw_typeTests: |
| 9135 | if (parseTypeTests(TypeIdInfo.TypeTests)) |
| 9136 | return true; |
| 9137 | break; |
| 9138 | case lltok::kw_typeTestAssumeVCalls: |
| 9139 | if (parseVFuncIdList(lltok::kw_typeTestAssumeVCalls, |
| 9140 | TypeIdInfo.TypeTestAssumeVCalls)) |
| 9141 | return true; |
| 9142 | break; |
| 9143 | case lltok::kw_typeCheckedLoadVCalls: |
| 9144 | if (parseVFuncIdList(lltok::kw_typeCheckedLoadVCalls, |
| 9145 | TypeIdInfo.TypeCheckedLoadVCalls)) |
| 9146 | return true; |
| 9147 | break; |
| 9148 | case lltok::kw_typeTestAssumeConstVCalls: |
| 9149 | if (parseConstVCallList(lltok::kw_typeTestAssumeConstVCalls, |
| 9150 | TypeIdInfo.TypeTestAssumeConstVCalls)) |
| 9151 | return true; |
| 9152 | break; |
| 9153 | case lltok::kw_typeCheckedLoadConstVCalls: |
| 9154 | if (parseConstVCallList(lltok::kw_typeCheckedLoadConstVCalls, |
| 9155 | TypeIdInfo.TypeCheckedLoadConstVCalls)) |
| 9156 | return true; |
| 9157 | break; |
| 9158 | default: |
| 9159 | return error(Lex.getLoc(), "invalid typeIdInfo list type" ); |
| 9160 | } |
| 9161 | } while (EatIfPresent(lltok::comma)); |
| 9162 | |
| 9163 | if (parseToken(lltok::rparen, "expected ')' in typeIdInfo" )) |
| 9164 | return true; |
| 9165 | |
| 9166 | return false; |
| 9167 | } |
| 9168 | |
| 9169 | /// TypeTests |
| 9170 | /// ::= 'typeTests' ':' '(' (SummaryID | UInt64) |
| 9171 | /// [',' (SummaryID | UInt64)]* ')' |
| 9172 | bool LLParser::parseTypeTests(std::vector<GlobalValue::GUID> &TypeTests) { |
| 9173 | assert(Lex.getKind() == lltok::kw_typeTests); |
| 9174 | Lex.Lex(); |
| 9175 | |
| 9176 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 9177 | parseToken(lltok::lparen, "expected '(' in typeIdInfo" )) |
| 9178 | return true; |
| 9179 | |
| 9180 | IdToIndexMapType IdToIndexMap; |
| 9181 | do { |
| 9182 | GlobalValue::GUID GUID = 0; |
| 9183 | if (Lex.getKind() == lltok::SummaryID) { |
| 9184 | unsigned ID = Lex.getUIntVal(); |
| 9185 | LocTy Loc = Lex.getLoc(); |
| 9186 | // Keep track of the TypeTests array index needing a forward reference. |
| 9187 | // We will save the location of the GUID needing an update, but |
| 9188 | // can only do so once the std::vector is finalized. |
| 9189 | IdToIndexMap[ID].push_back(std::make_pair(TypeTests.size(), Loc)); |
| 9190 | Lex.Lex(); |
| 9191 | } else if (parseUInt64(GUID)) |
| 9192 | return true; |
| 9193 | TypeTests.push_back(GUID); |
| 9194 | } while (EatIfPresent(lltok::comma)); |
| 9195 | |
| 9196 | // Now that the TypeTests vector is finalized, it is safe to save the |
| 9197 | // locations of any forward GV references that need updating later. |
| 9198 | for (auto I : IdToIndexMap) { |
| 9199 | auto &Ids = ForwardRefTypeIds[I.first]; |
| 9200 | for (auto P : I.second) { |
| 9201 | assert(TypeTests[P.first] == 0 && |
| 9202 | "Forward referenced type id GUID expected to be 0" ); |
| 9203 | Ids.emplace_back(&TypeTests[P.first], P.second); |
| 9204 | } |
| 9205 | } |
| 9206 | |
| 9207 | if (parseToken(lltok::rparen, "expected ')' in typeIdInfo" )) |
| 9208 | return true; |
| 9209 | |
| 9210 | return false; |
| 9211 | } |
| 9212 | |
| 9213 | /// VFuncIdList |
| 9214 | /// ::= Kind ':' '(' VFuncId [',' VFuncId]* ')' |
| 9215 | bool LLParser::parseVFuncIdList( |
| 9216 | lltok::Kind Kind, std::vector<FunctionSummary::VFuncId> &VFuncIdList) { |
| 9217 | assert(Lex.getKind() == Kind); |
| 9218 | Lex.Lex(); |
| 9219 | |
| 9220 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 9221 | parseToken(lltok::lparen, "expected '(' here" )) |
| 9222 | return true; |
| 9223 | |
| 9224 | IdToIndexMapType IdToIndexMap; |
| 9225 | do { |
| 9226 | FunctionSummary::VFuncId VFuncId; |
| 9227 | if (parseVFuncId(VFuncId, IdToIndexMap, VFuncIdList.size())) |
| 9228 | return true; |
| 9229 | VFuncIdList.push_back(VFuncId); |
| 9230 | } while (EatIfPresent(lltok::comma)); |
| 9231 | |
| 9232 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 9233 | return true; |
| 9234 | |
| 9235 | // Now that the VFuncIdList vector is finalized, it is safe to save the |
| 9236 | // locations of any forward GV references that need updating later. |
| 9237 | for (auto I : IdToIndexMap) { |
| 9238 | auto &Ids = ForwardRefTypeIds[I.first]; |
| 9239 | for (auto P : I.second) { |
| 9240 | assert(VFuncIdList[P.first].GUID == 0 && |
| 9241 | "Forward referenced type id GUID expected to be 0" ); |
| 9242 | Ids.emplace_back(&VFuncIdList[P.first].GUID, P.second); |
| 9243 | } |
| 9244 | } |
| 9245 | |
| 9246 | return false; |
| 9247 | } |
| 9248 | |
| 9249 | /// ConstVCallList |
| 9250 | /// ::= Kind ':' '(' ConstVCall [',' ConstVCall]* ')' |
| 9251 | bool LLParser::parseConstVCallList( |
| 9252 | lltok::Kind Kind, |
| 9253 | std::vector<FunctionSummary::ConstVCall> &ConstVCallList) { |
| 9254 | assert(Lex.getKind() == Kind); |
| 9255 | Lex.Lex(); |
| 9256 | |
| 9257 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 9258 | parseToken(lltok::lparen, "expected '(' here" )) |
| 9259 | return true; |
| 9260 | |
| 9261 | IdToIndexMapType IdToIndexMap; |
| 9262 | do { |
| 9263 | FunctionSummary::ConstVCall ConstVCall; |
| 9264 | if (parseConstVCall(ConstVCall, IdToIndexMap, ConstVCallList.size())) |
| 9265 | return true; |
| 9266 | ConstVCallList.push_back(ConstVCall); |
| 9267 | } while (EatIfPresent(lltok::comma)); |
| 9268 | |
| 9269 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 9270 | return true; |
| 9271 | |
| 9272 | // Now that the ConstVCallList vector is finalized, it is safe to save the |
| 9273 | // locations of any forward GV references that need updating later. |
| 9274 | for (auto I : IdToIndexMap) { |
| 9275 | auto &Ids = ForwardRefTypeIds[I.first]; |
| 9276 | for (auto P : I.second) { |
| 9277 | assert(ConstVCallList[P.first].VFunc.GUID == 0 && |
| 9278 | "Forward referenced type id GUID expected to be 0" ); |
| 9279 | Ids.emplace_back(&ConstVCallList[P.first].VFunc.GUID, P.second); |
| 9280 | } |
| 9281 | } |
| 9282 | |
| 9283 | return false; |
| 9284 | } |
| 9285 | |
| 9286 | /// ConstVCall |
| 9287 | /// ::= '(' VFuncId ',' Args ')' |
| 9288 | bool LLParser::parseConstVCall(FunctionSummary::ConstVCall &ConstVCall, |
| 9289 | IdToIndexMapType &IdToIndexMap, unsigned Index) { |
| 9290 | if (parseToken(lltok::lparen, "expected '(' here" ) || |
| 9291 | parseVFuncId(ConstVCall.VFunc, IdToIndexMap, Index)) |
| 9292 | return true; |
| 9293 | |
| 9294 | if (EatIfPresent(lltok::comma)) |
| 9295 | if (parseArgs(ConstVCall.Args)) |
| 9296 | return true; |
| 9297 | |
| 9298 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 9299 | return true; |
| 9300 | |
| 9301 | return false; |
| 9302 | } |
| 9303 | |
| 9304 | /// VFuncId |
| 9305 | /// ::= 'vFuncId' ':' '(' (SummaryID | 'guid' ':' UInt64) ',' |
| 9306 | /// 'offset' ':' UInt64 ')' |
| 9307 | bool LLParser::parseVFuncId(FunctionSummary::VFuncId &VFuncId, |
| 9308 | IdToIndexMapType &IdToIndexMap, unsigned Index) { |
| 9309 | assert(Lex.getKind() == lltok::kw_vFuncId); |
| 9310 | Lex.Lex(); |
| 9311 | |
| 9312 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 9313 | parseToken(lltok::lparen, "expected '(' here" )) |
| 9314 | return true; |
| 9315 | |
| 9316 | if (Lex.getKind() == lltok::SummaryID) { |
| 9317 | VFuncId.GUID = 0; |
| 9318 | unsigned ID = Lex.getUIntVal(); |
| 9319 | LocTy Loc = Lex.getLoc(); |
| 9320 | // Keep track of the array index needing a forward reference. |
| 9321 | // We will save the location of the GUID needing an update, but |
| 9322 | // can only do so once the caller's std::vector is finalized. |
| 9323 | IdToIndexMap[ID].push_back(std::make_pair(Index, Loc)); |
| 9324 | Lex.Lex(); |
| 9325 | } else if (parseToken(lltok::kw_guid, "expected 'guid' here" ) || |
| 9326 | parseToken(lltok::colon, "expected ':' here" ) || |
| 9327 | parseUInt64(VFuncId.GUID)) |
| 9328 | return true; |
| 9329 | |
| 9330 | if (parseToken(lltok::comma, "expected ',' here" ) || |
| 9331 | parseToken(lltok::kw_offset, "expected 'offset' here" ) || |
| 9332 | parseToken(lltok::colon, "expected ':' here" ) || |
| 9333 | parseUInt64(VFuncId.Offset) || |
| 9334 | parseToken(lltok::rparen, "expected ')' here" )) |
| 9335 | return true; |
| 9336 | |
| 9337 | return false; |
| 9338 | } |
| 9339 | |
| 9340 | /// GVFlags |
| 9341 | /// ::= 'flags' ':' '(' 'linkage' ':' OptionalLinkageAux ',' |
| 9342 | /// 'notEligibleToImport' ':' Flag ',' 'live' ':' Flag ',' |
| 9343 | /// 'dsoLocal' ':' Flag ',' 'canAutoHide' ':' Flag ')' |
| 9344 | bool LLParser::parseGVFlags(GlobalValueSummary::GVFlags &GVFlags) { |
| 9345 | assert(Lex.getKind() == lltok::kw_flags); |
| 9346 | Lex.Lex(); |
| 9347 | |
| 9348 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 9349 | parseToken(lltok::lparen, "expected '(' here" )) |
| 9350 | return true; |
| 9351 | |
| 9352 | do { |
| 9353 | unsigned Flag = 0; |
| 9354 | switch (Lex.getKind()) { |
| 9355 | case lltok::kw_linkage: |
| 9356 | Lex.Lex(); |
| 9357 | if (parseToken(lltok::colon, "expected ':'" )) |
| 9358 | return true; |
| 9359 | bool HasLinkage; |
| 9360 | GVFlags.Linkage = parseOptionalLinkageAux(Lex.getKind(), HasLinkage); |
| 9361 | assert(HasLinkage && "Linkage not optional in summary entry" ); |
| 9362 | Lex.Lex(); |
| 9363 | break; |
| 9364 | case lltok::kw_notEligibleToImport: |
| 9365 | Lex.Lex(); |
| 9366 | if (parseToken(lltok::colon, "expected ':'" ) || parseFlag(Flag)) |
| 9367 | return true; |
| 9368 | GVFlags.NotEligibleToImport = Flag; |
| 9369 | break; |
| 9370 | case lltok::kw_live: |
| 9371 | Lex.Lex(); |
| 9372 | if (parseToken(lltok::colon, "expected ':'" ) || parseFlag(Flag)) |
| 9373 | return true; |
| 9374 | GVFlags.Live = Flag; |
| 9375 | break; |
| 9376 | case lltok::kw_dsoLocal: |
| 9377 | Lex.Lex(); |
| 9378 | if (parseToken(lltok::colon, "expected ':'" ) || parseFlag(Flag)) |
| 9379 | return true; |
| 9380 | GVFlags.DSOLocal = Flag; |
| 9381 | break; |
| 9382 | case lltok::kw_canAutoHide: |
| 9383 | Lex.Lex(); |
| 9384 | if (parseToken(lltok::colon, "expected ':'" ) || parseFlag(Flag)) |
| 9385 | return true; |
| 9386 | GVFlags.CanAutoHide = Flag; |
| 9387 | break; |
| 9388 | default: |
| 9389 | return error(Lex.getLoc(), "expected gv flag type" ); |
| 9390 | } |
| 9391 | } while (EatIfPresent(lltok::comma)); |
| 9392 | |
| 9393 | if (parseToken(lltok::rparen, "expected ')' here" )) |
| 9394 | return true; |
| 9395 | |
| 9396 | return false; |
| 9397 | } |
| 9398 | |
| 9399 | /// GVarFlags |
| 9400 | /// ::= 'varFlags' ':' '(' 'readonly' ':' Flag |
| 9401 | /// ',' 'writeonly' ':' Flag |
| 9402 | /// ',' 'constant' ':' Flag ')' |
| 9403 | bool LLParser::parseGVarFlags(GlobalVarSummary::GVarFlags &GVarFlags) { |
| 9404 | assert(Lex.getKind() == lltok::kw_varFlags); |
| 9405 | Lex.Lex(); |
| 9406 | |
| 9407 | if (parseToken(lltok::colon, "expected ':' here" ) || |
| 9408 | parseToken(lltok::lparen, "expected '(' here" )) |
| 9409 | return true; |
| 9410 | |
| 9411 | auto ParseRest = [this](unsigned int &Val) { |
| 9412 | Lex.Lex(); |
| 9413 | if (parseToken(lltok::colon, "expected ':'" )) |
| 9414 | return true; |
| 9415 | return parseFlag(Val); |
| 9416 | }; |
| 9417 | |
| 9418 | do { |
| 9419 | unsigned Flag = 0; |
| 9420 | switch (Lex.getKind()) { |
| 9421 | case lltok::kw_readonly: |
| 9422 | if (ParseRest(Flag)) |
| 9423 | return true; |
| 9424 | GVarFlags.MaybeReadOnly = Flag; |
| 9425 | break; |
| 9426 | case lltok::kw_writeonly: |
| 9427 | if (ParseRest(Flag)) |
| 9428 | return true; |
| 9429 | GVarFlags.MaybeWriteOnly = Flag; |
| 9430 | break; |
| 9431 | case lltok::kw_constant: |
| 9432 | if (ParseRest(Flag)) |
| 9433 | return true; |
| 9434 | GVarFlags.Constant = Flag; |
| 9435 | break; |
| 9436 | case lltok::kw_vcall_visibility: |
| 9437 | if (ParseRest(Flag)) |
| 9438 | return true; |
| 9439 | GVarFlags.VCallVisibility = Flag; |
| 9440 | break; |
| 9441 | default: |
| 9442 | return error(Lex.getLoc(), "expected gvar flag type" ); |
| 9443 | } |
| 9444 | } while (EatIfPresent(lltok::comma)); |
| 9445 | return parseToken(lltok::rparen, "expected ')' here" ); |
| 9446 | } |
| 9447 | |
| 9448 | /// ModuleReference |
| 9449 | /// ::= 'module' ':' UInt |
| 9450 | bool LLParser::parseModuleReference(StringRef &ModulePath) { |
| 9451 | // parse module id. |
| 9452 | if (parseToken(lltok::kw_module, "expected 'module' here" ) || |
| 9453 | parseToken(lltok::colon, "expected ':' here" ) || |
| 9454 | parseToken(lltok::SummaryID, "expected module ID" )) |
| 9455 | return true; |
| 9456 | |
| 9457 | unsigned ModuleID = Lex.getUIntVal(); |
| 9458 | auto I = ModuleIdMap.find(ModuleID); |
| 9459 | // We should have already parsed all module IDs |
| 9460 | assert(I != ModuleIdMap.end()); |
| 9461 | ModulePath = I->second; |
| 9462 | return false; |
| 9463 | } |
| 9464 | |
| 9465 | /// GVReference |
| 9466 | /// ::= SummaryID |
| 9467 | bool LLParser::parseGVReference(ValueInfo &VI, unsigned &GVId) { |
| 9468 | bool WriteOnly = false, ReadOnly = EatIfPresent(lltok::kw_readonly); |
| 9469 | if (!ReadOnly) |
| 9470 | WriteOnly = EatIfPresent(lltok::kw_writeonly); |
| 9471 | if (parseToken(lltok::SummaryID, "expected GV ID" )) |
| 9472 | return true; |
| 9473 | |
| 9474 | GVId = Lex.getUIntVal(); |
| 9475 | // Check if we already have a VI for this GV |
| 9476 | if (GVId < NumberedValueInfos.size()) { |
| 9477 | assert(NumberedValueInfos[GVId].getRef() != FwdVIRef); |
| 9478 | VI = NumberedValueInfos[GVId]; |
| 9479 | } else |
| 9480 | // We will create a forward reference to the stored location. |
| 9481 | VI = ValueInfo(false, FwdVIRef); |
| 9482 | |
| 9483 | if (ReadOnly) |
| 9484 | VI.setReadOnly(); |
| 9485 | if (WriteOnly) |
| 9486 | VI.setWriteOnly(); |
| 9487 | return false; |
| 9488 | } |
| 9489 | |